165153900 has 36 divisors (see below), whose sum is σ = 477846152. Its totient is φ = 44040960.

The previous prime is 165153893. The next prime is 165153943. The reversal of 165153900 is 9351561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274957 + ... + 275556.

Almost surely, 2^165153900 is an apocalyptic number.

165153900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165153900 is an abundant number, since it is smaller than the sum of its proper divisors (312692252).

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

165153900 is a wasteful number, since it uses less digits than its factorization.

165153900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550530 (or 550523 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 165153900 is about 12851.2217318043. The cubic root of 165153900 is about 548.6511298740.

The spelling of 165153900 in words is "one hundred sixty-five million, one hundred fifty-three thousand, nine hundred".