165461902297 has 2 divisors, whose sum is σ = 165461902298. Its totient is φ = 165461902296.

The previous prime is 165461902283. The next prime is 165461902337. The reversal of 165461902297 is 792209164561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163685785561 + 1776116736 = 404581^2 + 42144^2 .

It is a cyclic number.

It is not a de Polignac number, because 165461902297 - 2⁷ = 165461902169 is a prime.

It is a super-2 number, since 2×165461902297² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165461902247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82730951148 + 82730951149.

It is an arithmetic number, because the mean of its divisors is an integer number (82730951149).

Almost surely, 2^165461902297 is an apocalyptic number.

It is an amenable number.

165461902297 is a deficient number, since it is larger than the sum of its proper divisors (1).

165461902297 is an equidigital number, since it uses as much as digits as its factorization.

165461902297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 165461902297 in words is "one hundred sixty-five billion, four hundred sixty-one million, nine hundred two thousand, two hundred ninety-seven".