User blog comment:BlauesWasser/Hyper-Kefts Number/@comment-34700793-20180216030336/@comment-30754445-20180216072142

Number of zeroes is not a good way to tell the size of googological numbers anyway.

If it is, indeed close 3{5}8 (taking Explodingnotation's word for it, because the definitions aren't clear) than the size of the number is:

1. Between J5 and J6. (the later the letter is in the alphabet, the bigger the number)

2. Psi Level 9 (a simple scale that goes from 0 to 1000 that classifies large numbers)

Comparing this to three very famous numbers:

A googol is an F2 and Psi Level 2

A googolplex is an F3 and a Psi Level 3

The famous Graham's Number is a K2 and a Psi Level 13