googolseptaplex 

Ten to the power of a googolsexplex

Googolseptaplex is a large number

googolseptaplex by Fomt July 2, 2006

Googolsepplex 

10^10^10^10^10^10^10^10^100

That’s a huge number. There’s 10^80 atoms in our universe (93,000,000,000 LY)

Dayum, that huge though googolsepplex is massive

Googolsepplex by TheReidShow November 29, 2017