165097165 has 16 divisors (see below), whose sum is σ = 207323136. Its totient is φ = 126057600.

The previous prime is 165097147. The next prime is 165097199. The reversal of 165097165 is 561790561.

It is not a de Polignac number, because 165097165 - 2²³ = 156708557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 4020 + ... + 18610.

It is an arithmetic number, because the mean of its divisors is an integer number (12957696).

Almost surely, 2^165097165 is an apocalyptic number.

It is an amenable number.

165097165 is a deficient number, since it is larger than the sum of its proper divisors (42225971).

165097165 is a wasteful number, since it uses less digits than its factorization.

165097165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14700.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 165097165 is about 12849.0141645186. The cubic root of 165097165 is about 548.5882969912.

The spelling of 165097165 in words is "one hundred sixty-five million, ninety-seven thousand, one hundred sixty-five".