57661626756512 has 24 divisors (see below), whose sum is σ = 113521940453376. Its totient is φ = 28830657752512.

The previous prime is 57661626756467. The next prime is 57661626756521. The reversal of 57661626756512 is 21565762616675.

It is a super-2 number, since 2×57661626756512² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276823 + ... + 10814505.

It is an arithmetic number, because the mean of its divisors is an integer number (4730080852224).

Almost surely, 2^{57661626756512} is an apocalyptic number.

It is an amenable number.

57661626756512 is a deficient number, since it is larger than the sum of its proper divisors (55860313696864).

57661626756512 is a wasteful number, since it uses less digits than its factorization.

57661626756512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726620 (or 9726612 counting only the distinct ones).

The product of its digits is 190512000, while the sum is 65.

The spelling of 57661626756512 in words is "fifty-seven trillion, six hundred sixty-one billion, six hundred twenty-six million, seven hundred fifty-six thousand, five hundred twelve".