80165908256 has 144 divisors (see below), whose sum is σ = 198185279040. Its totient is φ = 31729420800.

The previous prime is 80165908243. The next prime is 80165908297. The reversal of 80165908256 is 65280956108.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1007531 + ... + 1084181.

It is an arithmetic number, because the mean of its divisors is an integer number (1376286660).

Almost surely, 2^80165908256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80165908256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99092639520).

80165908256 is an abundant number, since it is smaller than the sum of its proper divisors (118019370784).

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

80165908256 is a wasteful number, since it uses less digits than its factorization.

80165908256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76727 (or 76712 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 80165908256 in words is "eighty billion, one hundred sixty-five million, nine hundred eight thousand, two hundred fifty-six".