80166323072 has 64 divisors (see below), whose sum is σ = 180232959600. Its totient is φ = 35182694400.

The previous prime is 80166323033. The next prime is 80166323087. The reversal of 80166323072 is 27032366108.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940829 + ... + 1022492.

Almost surely, 2^80166323072 is an apocalyptic number.

It is an amenable number.

80166323072 is an abundant number, since it is smaller than the sum of its proper divisors (100066636528).

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

80166323072 is a wasteful number, since it uses less digits than its factorization.

80166323072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963375 (or 1963363 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 80166323072 in words is "eighty billion, one hundred sixty-six million, three hundred twenty-three thousand, seventy-two".