What is googolplex minus 1?

A googolplex is 10 to the power of a googol, which is 10 to the power of 100. Therefore, a googolplex is 10^(10^100). Subtracting 1 from a googolplex would result in a number that is still incredibly close to a googolplex itself, given the immense size of a googolplex. The resulting number would be almost indistinguishable from a googolplex in practical terms.