165116177 has 2 divisors, whose sum is σ = 165116178. Its totient is φ = 165116176.

The previous prime is 165116153. The next prime is 165116179. The reversal of 165116177 is 771611561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142468096 + 22648081 = 11936^2 + 4759^2 .

It is a cyclic number.

It is not a de Polignac number, because 165116177 - 2⁸ = 165115921 is a prime.

Together with 165116179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165116179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82558088 + 82558089.

It is an arithmetic number, because the mean of its divisors is an integer number (82558089).

Almost surely, 2^165116177 is an apocalyptic number.

It is an amenable number.

165116177 is a deficient number, since it is larger than the sum of its proper divisors (1).

165116177 is an equidigital number, since it uses as much as digits as its factorization.

165116177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 35.

The square root of 165116177 is about 12849.7539665162. The cubic root of 165116177 is about 548.6093540061.

The spelling of 165116177 in words is "one hundred sixty-five million, one hundred sixteen thousand, one hundred seventy-seven".