165731078107338 has 16 divisors (see below), whose sum is σ = 342891885739680. Its totient is φ = 53338737781616.

The previous prime is 165731078107297. The next prime is 165731078107363. The reversal of 165731078107338 is 833701870137561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476238730020 + ... + 476238730367.

It is an arithmetic number, because the mean of its divisors is an integer number (21430742858730).

Almost surely, 2^{165731078107338} is an apocalyptic number.

165731078107338 is an abundant number, since it is smaller than the sum of its proper divisors (177160807632342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165731078107338 is a wasteful number, since it uses less digits than its factorization.

165731078107338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952477460421.

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 165731078107338 in words is "one hundred sixty-five trillion, seven hundred thirty-one billion, seventy-eight million, one hundred seven thousand, three hundred thirty-eight".