80415528656 has 20 divisors (see below), whose sum is σ = 161177676900. Its totient is φ = 38821289472.

The previous prime is 80415528643. The next prime is 80415528667. The reversal of 80415528656 is 65682551408.

It can be written as a sum of positive squares in 2 ways, for example, as 25792360000 + 54623168656 = 160600^2 + 233716^2 .

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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86654201 + ... + 86655128.

It is an arithmetic number, because the mean of its divisors is an integer number (8058883845).

Almost surely, 2^80415528656 is an apocalyptic number.

It is an amenable number.

80415528656 is an abundant number, since it is smaller than the sum of its proper divisors (80762148244).

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

80415528656 is a wasteful number, since it uses less digits than its factorization.

80415528656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173309366 (or 173309360 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 80415528656 in words is "eighty billion, four hundred fifteen million, five hundred twenty-eight thousand, six hundred fifty-six".