158695135957 has 2 divisors, whose sum is σ = 158695135958. Its totient is φ = 158695135956.

The previous prime is 158695135909. The next prime is 158695135979. The reversal of 158695135957 is 759531596851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135384258916 + 23310877041 = 367946^2 + 152679^2 .

It is a cyclic number.

It is not a de Polignac number, because 158695135957 - 2³¹ = 156547652309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158695135657) 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, 79347567978 + 79347567979.

It is an arithmetic number, because the mean of its divisors is an integer number (79347567979).

Almost surely, 2^158695135957 is an apocalyptic number.

It is an amenable number.

158695135957 is a deficient number, since it is larger than the sum of its proper divisors (1).

158695135957 is an equidigital number, since it uses as much as digits as its factorization.

158695135957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030000, while the sum is 64.

The spelling of 158695135957 in words is "one hundred fifty-eight billion, six hundred ninety-five million, one hundred thirty-five thousand, nine hundred fifty-seven".