57166351880 has 128 divisors (see below), whose sum is σ = 146586931200. Its totient is φ = 19861036800.

The previous prime is 57166351831. The next prime is 57166351901. The reversal of 57166351880 is 8815366175.

It is a happy 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, 10430981 + ... + 10436459.

It is an arithmetic number, because the mean of its divisors is an integer number (1145210400).

Almost surely, 2^57166351880 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 57166351880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73293465600).

57166351880 is an abundant number, since it is smaller than the sum of its proper divisors (89420579320).

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

57166351880 is a wasteful number, since it uses less digits than its factorization.

57166351880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555 (or 6551 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 57166351880 in words is "fifty-seven billion, one hundred sixty-six million, three hundred fifty-one thousand, eight hundred eighty".