165241005155 has 16 divisors (see below), whose sum is σ = 211743763200. Its totient is φ = 123517188480.

The previous prime is 165241005143. The next prime is 165241005161. The reversal of 165241005155 is 551500142561.

It is not a de Polignac number, because 165241005155 - 2²⁶ = 165173896291 is a prime.

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, 18376040 + ... + 18385029.

It is an arithmetic number, because the mean of its divisors is an integer number (13233985200).

Almost surely, 2^165241005155 is an apocalyptic number.

165241005155 is a deficient number, since it is larger than the sum of its proper divisors (46502758045).

165241005155 is a wasteful number, since it uses less digits than its factorization.

165241005155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36761134.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 165241005155 in words is "one hundred sixty-five billion, two hundred forty-one million, five thousand, one hundred fifty-five".