Googolplex is the largest number as of now. It is a number followed by 100 zeros.
Naah the bigist number is infinite ^infinite and so on.
Well as you can see, you cant really say theres a possible biggest number that you can list, but a interesting video you can watch is the following https://www.youtube.com/watch?v=SrU9YDoXE88
Its talking about infinite in general