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

ThickafourtwelvearialuniverseÂ isÂ much much larger than Thickafourtwelvearialsun.Â This is the third number coined by Brazilian amateur googologistÂ Daniel CorrĂȘa.

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

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

Creation process

The creation process ofÂ ThickafourtwelvearialuniverseÂ has a "physical meaning":

1. Write a complete line of 9's in aÂ Bond A4 Copy Paper 75gsmÂ using Regular Arial 12 as font;
2. Measure the lengthÂ (3.15 mm)Â andÂ widthÂ (1.9 mm)Â of number nine,Â and the space between two nines in sequenceÂ (0.42 mm);
3. Measure the thickness of the paperÂ (0.103 mm);
4. Imagine the observable Universe as a perfect smooth sphere with radius equal to 437611818389704994918697577843.981 mm,Â radiusÂ 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 theÂ observable UniverseÂ 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 isÂ 3.15 mmÂ length andÂ 0.103Â mmÂ thickness;
7. When doing the calculations, you will find that the total widthÂ (W)Â of the flat spherical spiral as described before is: 23364189708127778224861396843578176811975205874893493233612739.881 mm;
8. Knowing the width of the strip, find the number of digitsÂ (n)Â written on it using n = (W+0.42)/2.32, that is:Â 10070771425917145786578188294645765867230692187454091911039974.268.

âNaming

âUsingÂ Jonathan Bower's -illions series,Â ThickafourtwelvearialuniverseÂ can be named as shown below:

 Illion name for Thickafourtwelvearialuniverse. 9 Nine treicosi-sexquinquagintitrecentenneco-trevigintinongentiocteco-octooctingentihepteco-novemtrigintisescentihexeco-octoquadragintipenteco-quinnonagintiquingentitetreco-sexvigintiquingentitreco-doesexagintidueco-quattuorsexagintiseptingentimeco-unoctogintioctingentiveco-unvigintinongentixono-quinquinquagintinongentyocto-trequadragintiseptingentizepto-quattuorsexagintiquingentiatto-doesexagintifemto-quattuoroctogintiquadringentipico-septennonagintisescentinano-trecentretimicro-novemseptuagintisescentimilli-unnonagintinongentillion 999 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 999 Nine hundred ninety-nine trillion 999 Nine hundred ninety-nine billion 999 Nine hundred ninety-nine million 999 Nine hundred ninety-nine thousand 999 Nine hundred ninety-nine