57561888972120 has 128 divisors (see below), whose sum is σ = 189925971056640. Its totient is φ = 13867610549760.

The previous prime is 57561888972097. The next prime is 57561888972139. The reversal of 57561888972120 is 2127988816575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392465476 + ... + 392612115.

It is an arithmetic number, because the mean of its divisors is an integer number (1483796648880).

Almost surely, 2^{57561888972120} is an apocalyptic number.

It is an amenable number.

57561888972120 is an abundant number, since it is smaller than the sum of its proper divisors (132364082084520).

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

57561888972120 is a wasteful number, since it uses less digits than its factorization.

57561888972120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785077665 (or 785077661 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 69.

The spelling of 57561888972120 in words is "fifty-seven trillion, five hundred sixty-one billion, eight hundred eighty-eight million, nine hundred seventy-two thousand, one hundred twenty".