165104920 has 32 divisors (see below), whose sum is σ = 372582000. Its totient is φ = 65847168.

The previous prime is 165104873. The next prime is 165104921. The reversal of 165104920 is 29401561.

165104920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165104921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8047 + ... + 19873.

Almost surely, 2^165104920 is an apocalyptic number.

165104920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165104920 is an abundant number, since it is smaller than the sum of its proper divisors (207477080).

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

165104920 is a wasteful number, since it uses less digits than its factorization.

165104920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12187 (or 12183 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 165104920 is about 12849.3159350994. The cubic root of 165104920 is about 548.5968863485.

The spelling of 165104920 in words is "one hundred sixty-five million, one hundred four thousand, nine hundred twenty".