57164475637 has 2 divisors, whose sum is σ = 57164475638. Its totient is φ = 57164475636.

The previous prime is 57164475619. The next prime is 57164475653. The reversal of 57164475637 is 73657446175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40356390321 + 16808085316 = 200889^2 + 129646^2 .

It is a cyclic number.

It is not a de Polignac number, because 57164475637 - 2¹¹ = 57164473589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57164475617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28582237818 + 28582237819.

It is an arithmetic number, because the mean of its divisors is an integer number (28582237819).

Almost surely, 2^57164475637 is an apocalyptic number.

It is an amenable number.

57164475637 is a deficient number, since it is larger than the sum of its proper divisors (1).

57164475637 is an equidigital number, since it uses as much as digits as its factorization.

57164475637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14817600, while the sum is 55.

The spelling of 57164475637 in words is "fifty-seven billion, one hundred sixty-four million, four hundred seventy-five thousand, six hundred thirty-seven".