80566656708 has 12 divisors (see below), whose sum is σ = 187988865680. Its totient is φ = 26855552232.

The previous prime is 80566656623. The next prime is 80566656743. The reversal of 80566656708 is 80765666508.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3356944018 + ... + 3356944041.

Almost surely, 2^80566656708 is an apocalyptic number.

It is an amenable number.

80566656708 is an abundant number, since it is smaller than the sum of its proper divisors (107422208972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80566656708 is a wasteful number, since it uses less digits than its factorization.

80566656708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6713888066 (or 6713888064 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 80566656708 in words is "eighty billion, five hundred sixty-six million, six hundred fifty-six thousand, seven hundred eight".