80072803656 has 48 divisors (see below), whose sum is σ = 218519318160. Its totient is φ = 26487183840.

The previous prime is 80072803609. The next prime is 80072803663. The reversal of 80072803656 is 65630827008.

80072803656 is a `hidden beast` number, since 8 + 0 + 0 + 7 + 280 + 365 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4235310 + ... + 4254173.

It is an arithmetic number, because the mean of its divisors is an integer number (4552485795).

Almost surely, 2^80072803656 is an apocalyptic number.

It is an amenable number.

80072803656 is an abundant number, since it is smaller than the sum of its proper divisors (138446514504).

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

80072803656 is a wasteful number, since it uses less digits than its factorization.

80072803656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489626 (or 8489619 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 80072803656 in words is "eighty billion, seventy-two million, eight hundred three thousand, six hundred fifty-six".