80557223912 has 32 divisors (see below), whose sum is σ = 164841955200. Its totient is φ = 36602294400.

The previous prime is 80557223869. The next prime is 80557223917. The reversal of 80557223912 is 21932275508.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (80557223917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40289 + ... + 403407.

It is an arithmetic number, because the mean of its divisors is an integer number (5151311100).

Almost surely, 2^80557223912 is an apocalyptic number.

It is an amenable number.

80557223912 is an abundant number, since it is smaller than the sum of its proper divisors (84284731288).

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

80557223912 is a wasteful number, since it uses less digits than its factorization.

80557223912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365657 (or 365653 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 80557223912 in words is "eighty billion, five hundred fifty-seven million, two hundred twenty-three thousand, nine hundred twelve".