57997166933 has 2 divisors, whose sum is σ = 57997166934. Its totient is φ = 57997166932.

The previous prime is 57997166921. The next prime is 57997166989. The reversal of 57997166933 is 33966179975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55376443684 + 2620723249 = 235322^2 + 51193^2 .

It is a cyclic number.

It is not a de Polignac number, because 57997166933 - 2¹² = 57997162837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57997166933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57997166333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28998583466 + 28998583467.

It is an arithmetic number, because the mean of its divisors is an integer number (28998583467).

Almost surely, 2^57997166933 is an apocalyptic number.

It is an amenable number.

57997166933 is a deficient number, since it is larger than the sum of its proper divisors (1).

57997166933 is an equidigital number, since it uses as much as digits as its factorization.

57997166933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57868020, while the sum is 65.

The spelling of 57997166933 in words is "fifty-seven billion, nine hundred ninety-seven million, one hundred sixty-six thousand, nine hundred thirty-three".