165055516577297 has 2 divisors, whose sum is σ = 165055516577298. Its totient is φ = 165055516577296.

The previous prime is 165055516577249. The next prime is 165055516577327. The reversal of 165055516577297 is 792775615550561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120082344487681 + 44973172089616 = 10958209^2 + 6706204^2 .

It is a cyclic number.

It is not a de Polignac number, because 165055516577297 - 2⁶ = 165055516577233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165055516577297.

It is not a weakly prime, because it can be changed into another prime (165055516577207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82527758288648 + 82527758288649.

It is an arithmetic number, because the mean of its divisors is an integer number (82527758288649).

Almost surely, 2^{165055516577297} is an apocalyptic number.

It is an amenable number.

165055516577297 is a deficient number, since it is larger than the sum of its proper divisors (1).

165055516577297 is an equidigital number, since it uses as much as digits as its factorization.

165055516577297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 694575000, while the sum is 71.

The spelling of 165055516577297 in words is "one hundred sixty-five trillion, fifty-five billion, five hundred sixteen million, five hundred seventy-seven thousand, two hundred ninety-seven".