165354336507 has 16 divisors (see below), whose sum is σ = 227367164160. Its totient is φ = 106841498400.

The previous prime is 165354336503. The next prime is 165354336547. The reversal of 165354336507 is 705633453561.

It is not a de Polignac number, because 165354336507 - 2² = 165354336503 is a prime.

It is a super-2 number, since 2×165354336507² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165354336503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6566344 + ... + 6591477.

It is an arithmetic number, because the mean of its divisors is an integer number (14210447760).

Almost surely, 2^165354336507 is an apocalyptic number.

165354336507 is a deficient number, since it is larger than the sum of its proper divisors (62012827653).

165354336507 is a wasteful number, since it uses less digits than its factorization.

165354336507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13157954.

The product of its (nonzero) digits is 3402000, while the sum is 48.

The spelling of 165354336507 in words is "one hundred sixty-five billion, three hundred fifty-four million, three hundred thirty-six thousand, five hundred seven".