165157404 has 48 divisors (see below), whose sum is σ = 390770688. Its totient is φ = 54286848.

The previous prime is 165157403. The next prime is 165157409. The reversal of 165157404 is 404751561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165157403) 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, 467692 + ... + 468044.

It is an arithmetic number, because the mean of its divisors is an integer number (8141056).

Almost surely, 2^165157404 is an apocalyptic number.

It is an amenable number.

165157404 is an abundant number, since it is smaller than the sum of its proper divisors (225613284).

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

165157404 is a wasteful number, since it uses less digits than its factorization.

165157404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 165157404 is about 12851.3580605320. The cubic root of 165157404 is about 548.6550100124.

It can be divided in two parts, 165157 and 404, that added together give a palindrome (165561).

The spelling of 165157404 in words is "one hundred sixty-five million, one hundred fifty-seven thousand, four hundred four".