57166542566 has 24 divisors (see below), whose sum is σ = 105617420856. Its totient is φ = 23058772800.

The previous prime is 57166542547. The next prime is 57166542623. The reversal of 57166542566 is 66524566175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17155160 + ... + 17158491.

It is an arithmetic number, because the mean of its divisors is an integer number (4400725869).

Almost surely, 2^57166542566 is an apocalyptic number.

57166542566 is a deficient number, since it is larger than the sum of its proper divisors (48450878290).

57166542566 is a wasteful number, since it uses less digits than its factorization.

57166542566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34313684 (or 34313677 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 53.

The spelling of 57166542566 in words is "fifty-seven billion, one hundred sixty-six million, five hundred forty-two thousand, five hundred sixty-six".