Googolecettaplex

Googolecettaplex is equal to E100#(1+E300) using Hyper-E Notation. The term was coined by Sbiis Saibian by applying his largest extended SI prefix to the series of constructions: googolmegaplex, googolgigaplex, googolteraplex, etc.

A googolecettaplex is far vaster than a googolyottaplex, but is still quite tiny compared to something like a googolplex-stack.