158940370117 has 2 divisors, whose sum is σ = 158940370118. Its totient is φ = 158940370116.

The previous prime is 158940370087. The next prime is 158940370139. The reversal of 158940370117 is 711073049851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93636612001 + 65303758116 = 306001^2 + 255546^2 .

It is a cyclic number.

It is not a de Polignac number, because 158940370117 - 2²⁷ = 158806152389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158940370157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79470185058 + 79470185059.

It is an arithmetic number, because the mean of its divisors is an integer number (79470185059).

Almost surely, 2^158940370117 is an apocalyptic number.

It is an amenable number.

158940370117 is a deficient number, since it is larger than the sum of its proper divisors (1).

158940370117 is an equidigital number, since it uses as much as digits as its factorization.

158940370117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 158940370117 in words is "one hundred fifty-eight billion, nine hundred forty million, three hundred seventy thousand, one hundred seventeen".