166160005057 has 2 divisors, whose sum is σ = 166160005058. Its totient is φ = 166160005056.

The previous prime is 166160005021. The next prime is 166160005093. The reversal of 166160005057 is 750500061661.

It is a balanced prime because it is at equal distance from previous prime (166160005021) and next prime (166160005093).

It can be written as a sum of positive squares in only one way, i.e., 117070728336 + 49089276721 = 342156^2 + 221561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166160005057 is a prime.

It is not a weakly prime, because it can be changed into another prime (166160005007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83080002528 + 83080002529.

It is an arithmetic number, because the mean of its divisors is an integer number (83080002529).

Almost surely, 2^166160005057 is an apocalyptic number.

It is an amenable number.

166160005057 is a deficient number, since it is larger than the sum of its proper divisors (1).

166160005057 is an equidigital number, since it uses as much as digits as its factorization.

166160005057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 166160005057 in words is "one hundred sixty-six billion, one hundred sixty million, five thousand, fifty-seven".