Givgol was formerly known as gigol, coined by Joyce by substituting the -i- from six for the -oo- in googol, but was changed when Jonathan Bowers renamed his much higher gygol to gigol. An alternative suggestion at the time, which saw some temporary useage, was gerigol, formed by inserting an -er- for a preceding zero before the -i-.[1] It's equal to g(2, 50, g(1, 6, 50)) = \(300^{50}\) in Ackermann's Generalized Exponential Notation. It has 124 digits and its digital representation is:
7178979876918525887702490000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000