165713415478 has 16 divisors (see below), whose sum is σ = 268678702656. Its totient is φ = 76200886080.

The previous prime is 165713415421. The next prime is 165713415481. The reversal of 165713415478 is 874514317561.

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 7 ways as a sum of consecutive naturals, for example, 11752351 + ... + 11766442.

It is an arithmetic number, because the mean of its divisors is an integer number (16792418916).

Almost surely, 2^165713415478 is an apocalyptic number.

165713415478 is a deficient number, since it is larger than the sum of its proper divisors (102965287178).

165713415478 is a wasteful number, since it uses less digits than its factorization.

165713415478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23519079.

The product of its digits is 2822400, while the sum is 52.

The spelling of 165713415478 in words is "one hundred sixty-five billion, seven hundred thirteen million, four hundred fifteen thousand, four hundred seventy-eight".