70564166137 has 2 divisors, whose sum is σ = 70564166138. Its totient is φ = 70564166136.

The previous prime is 70564166093. The next prime is 70564166159. The reversal of 70564166137 is 73166146507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67390083216 + 3174082921 = 259596^2 + 56339^2 .

It is a cyclic number.

It is not a de Polignac number, because 70564166137 - 2¹¹ = 70564164089 is a prime.

It is a super-2 number, since 2×70564166137² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70564166537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35282083068 + 35282083069.

It is an arithmetic number, because the mean of its divisors is an integer number (35282083069).

Almost surely, 2^70564166137 is an apocalyptic number.

It is an amenable number.

70564166137 is a deficient number, since it is larger than the sum of its proper divisors (1).

70564166137 is an equidigital number, since it uses as much as digits as its factorization.

70564166137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 70564166137 in words is "seventy billion, five hundred sixty-four million, one hundred sixty-six thousand, one hundred thirty-seven".