57061631680 has 112 divisors (see below), whose sum is σ = 139297830624. Its totient is φ = 22255534080.

The previous prime is 57061631609. The next prime is 57061631743. The reversal of 57061631680 is 8613616075.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2754160 + ... + 2774800.

Almost surely, 2^57061631680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57061631680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69648915312).

57061631680 is an abundant number, since it is smaller than the sum of its proper divisors (82236198944).

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

57061631680 is a wasteful number, since it uses less digits than its factorization.

57061631680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20874 (or 20864 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 57061631680 in words is "fifty-seven billion, sixty-one million, six hundred thirty-one thousand, six hundred eighty".