57166724413 has 2 divisors, whose sum is σ = 57166724414. Its totient is φ = 57166724412.

The previous prime is 57166724387. The next prime is 57166724441. The reversal of 57166724413 is 31442766175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29385502084 + 27781222329 = 171422^2 + 166677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57166724413 is a prime.

It is a super-2 number, since 2×57166724413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57166724453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28583362206 + 28583362207.

It is an arithmetic number, because the mean of its divisors is an integer number (28583362207).

Almost surely, 2^57166724413 is an apocalyptic number.

It is an amenable number.

57166724413 is a deficient number, since it is larger than the sum of its proper divisors (1).

57166724413 is an equidigital number, since it uses as much as digits as its factorization.

57166724413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The spelling of 57166724413 in words is "fifty-seven billion, one hundred sixty-six million, seven hundred twenty-four thousand, four hundred thirteen".