158165294317 has 2 divisors, whose sum is σ = 158165294318. Its totient is φ = 158165294316.

The previous prime is 158165294239. The next prime is 158165294351. The reversal of 158165294317 is 713492561851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124255545001 + 33909749316 = 352499^2 + 184146^2 .

It is a cyclic number.

It is not a de Polignac number, because 158165294317 - 2¹⁵ = 158165261549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158165294117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79082647158 + 79082647159.

It is an arithmetic number, because the mean of its divisors is an integer number (79082647159).

Almost surely, 2^158165294317 is an apocalyptic number.

It is an amenable number.

158165294317 is a deficient number, since it is larger than the sum of its proper divisors (1).

158165294317 is an equidigital number, since it uses as much as digits as its factorization.

158165294317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 52.

The spelling of 158165294317 in words is "one hundred fifty-eight billion, one hundred sixty-five million, two hundred ninety-four thousand, three hundred seventeen".