57111667120 has 20 divisors (see below), whose sum is σ = 132784626240. Its totient is φ = 22844666816.

The previous prime is 57111667087. The next prime is 57111667121. The reversal of 57111667120 is 2176611175.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 57111667120.

It is not an unprimeable number, because it can be changed into a prime (57111667121) 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 3 ways as a sum of consecutive naturals, for example, 356947840 + ... + 356947999.

It is an arithmetic number, because the mean of its divisors is an integer number (6639231312).

Almost surely, 2^57111667120 is an apocalyptic number.

It is an amenable number.

57111667120 is an abundant number, since it is smaller than the sum of its proper divisors (75672959120).

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

57111667120 is a wasteful number, since it uses less digits than its factorization.

57111667120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713895852 (or 713895846 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 57111667120 in words is "fifty-seven billion, one hundred eleven million, six hundred sixty-seven thousand, one hundred twenty".