Equal to \(10^{10070771425917145786578188294645765867230692187454091911039974}-1\).

Thickafourtwelvearialuniverse is much much larger than ThickafourtwelvearialsunThis is the third number coined by Brazilian amateur googologist Daniel Corrêa.

It is a Class 3 googologism and its decimal expression is:

9...999 with 10070771425917145786578188294645765867230692187454091911039974 "9's"

Creation process

The creation process of Thickafourtwelvearialuniverse has a "physical meaning":

  1. Write a complete line of 9's in a Bond A4 Copy Paper 75gsm using Regular Arial 12 as font;
  2. Measure the length (3.15 mm) and width (1.9 mm) of number nine, and the space between two nines in sequence (0.42 mm);
  3. Measure the thickness of the paper (0.103 mm);
  4. Imagine the observable Universe as a perfect smooth sphere with radius equal to 437611818389704994918697577843.981 mmradius calculated using the parameters of Planck 2015 shown in the rightmost column of Table 4 on page 31, and equation 8 described on page 7 of "A Map of the Universe";
  5. Imagine you cover the whole surface of the observable Universe with a flat spherical spiral in vertical position, this spherical spiral made of a paper strip with 9's written on it as described in (1.);
  6. From (2.) and (3.) you can conclude that the paper strip is 3.15 mm length and 0.103 mm thickness;
  7. When doing the calculations, you will find that the total width (W) of the flat spherical spiral as described before is: 23364189708127778224861396843578176811975205874893493233612739.881 mm;
  8. Knowing the width of the strip, find the number of digits (n) written on it using n = (W+0.42)/2.32, that is: 10070771425917145786578188294645765867230692187454091911039974.268.


Using Jonathan Bower's -illions seriesThickafourtwelvearialuniverse can be named as shown below:

Illion name for Thickafourtwelvearialuniverse.
Nine treicosi-sexquinquagintitrecentenneco-trevigintinongentiocteco-octooctingentihepteco-novemtrigintisescentihexeco-octoquadragintipenteco-quinnonagintiquingentitetreco-sexvigintiquingentitreco-doesexagintidueco-quattuorsexagintiseptingentimeco-unoctogintioctingentiveco-unvigintinongentixono-quinquinquagintinongentyocto-trequadragintiseptingentizepto-quattuorsexagintiquingentiatto-doesexagintifemto-quattuoroctogintiquadringentipico-septennonagintisescentinano-trecentretimicro-novemseptuagintisescentimilli-unnonagintinongentillion
Nine hundred ninety-nine treicosi-sexquinquagintitrecentenneco-trevigintinongentiocteco-octooctingentihepteco-novemtrigintisescentihexeco-octoquadragintipenteco-quinnonagintiquingentitetreco-sexvigintiquingentitreco-doesexagintidueco-quattuorsexagintiseptingentimeco-unoctogintioctingentiveco-unvigintinongentixono-quinquinquagintinongentyocto-trequadragintiseptingentizepto-quattuorsexagintiquingentiatto-doesexagintifemto-quattuoroctogintiquadringentipico-septennonagintisescentinano-trecentretimicro-novemseptuagintisescentimilli-nonagintinongentillion
... ...
More 3356923808639048595526062764881921955743564062484697303679984 groups of illion names, each one preceded by nine hundred ninety-nine
Nine hundred ninety-nine trillion
Nine hundred ninety-nine billion
Nine hundred ninety-nine million
Nine hundred ninety-nine thousand
Nine hundred ninety-nine

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.