57166538805 has 32 divisors (see below), whose sum is σ = 101642227200. Its totient is φ = 30484973376.

The previous prime is 57166538789. The next prime is 57166538851. The reversal of 57166538805 is 50883566175.

57166538805 is a `hidden beast` number, since 571 + 6 + 65 + 3 + 8 + 8 + 0 + 5 = 666.

It is not a de Polignac number, because 57166538805 - 2⁴ = 57166538789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1284516 + ... + 1328274.

It is an arithmetic number, because the mean of its divisors is an integer number (3176319600).

Almost surely, 2^57166538805 is an apocalyptic number.

It is an amenable number.

57166538805 is a deficient number, since it is larger than the sum of its proper divisors (44475688395).

57166538805 is a wasteful number, since it uses less digits than its factorization.

57166538805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53450 (or 53444 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 57166538805 in words is "fifty-seven billion, one hundred sixty-six million, five hundred thirty-eight thousand, eight hundred five".