57166312272 has 40 divisors (see below), whose sum is σ = 147781597920. Its totient is φ = 19042281600.

The previous prime is 57166312271. The next prime is 57166312277. The reversal of 57166312272 is 27221366175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57166312271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 340747 + ... + 480042.

It is an arithmetic number, because the mean of its divisors is an integer number (3694539948).

Almost surely, 2^57166312272 is an apocalyptic number.

It is an amenable number.

57166312272 is an abundant number, since it is smaller than the sum of its proper divisors (90615285648).

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

57166312272 is a wasteful number, since it uses less digits than its factorization.

57166312272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822251 (or 822245 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The spelling of 57166312272 in words is "fifty-seven billion, one hundred sixty-six million, three hundred twelve thousand, two hundred seventy-two".