80925639639156 has 72 divisors (see below), whose sum is σ = 220298689021320. Its totient is φ = 24900070846464.

The previous prime is 80925639639149. The next prime is 80925639639161. The reversal of 80925639639156 is 65193693652908.

80925639639156 is a `hidden beast` number, since 8 + 0 + 9 + 2 + 56 + 396 + 39 + 156 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1933823984400 + 78991815654756 = 1390620^2 + 8887734^2 .

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 23 ways as a sum of consecutive naturals, for example, 140952640 + ... + 141525608.

It is an arithmetic number, because the mean of its divisors is an integer number (3059704014185).

Almost surely, 2^{80925639639156} is an apocalyptic number.

It is an amenable number.

80925639639156 is an abundant number, since it is smaller than the sum of its proper divisors (139373049382164).

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

80925639639156 is a wasteful number, since it uses less digits than its factorization.

80925639639156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874785 (or 874780 counting only the distinct ones).

The product of its (nonzero) digits is 566870400, while the sum is 72.

The spelling of 80925639639156 in words is "eighty trillion, nine hundred twenty-five billion, six hundred thirty-nine million, six hundred thirty-nine thousand, one hundred fifty-six".