165910660 has 24 divisors (see below), whose sum is σ = 366750720. Its totient is φ = 62871264.

The previous prime is 165910631. The next prime is 165910681. The reversal of 165910660 is 66019561.

165910660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217924 + ... + 218683.

It is an arithmetic number, because the mean of its divisors is an integer number (15281280).

Almost surely, 2^165910660 is an apocalyptic number.

165910660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165910660 is an abundant number, since it is smaller than the sum of its proper divisors (200840060).

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

165910660 is a wasteful number, since it uses less digits than its factorization.

165910660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436635 (or 436633 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 165910660 is about 12880.6311957140. The cubic root of 165910660 is about 549.4878538289.

The spelling of 165910660 in words is "one hundred sixty-five million, nine hundred ten thousand, six hundred sixty".