165050400 has 72 divisors (see below), whose sum is σ = 537246864. Its totient is φ = 44012800.

The previous prime is 165050387. The next prime is 165050419. The reversal of 165050400 is 4050561.

It is a happy number.

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, 31986 + ... + 36785.

It is an arithmetic number, because the mean of its divisors is an integer number (7461762).

Almost surely, 2^165050400 is an apocalyptic number.

165050400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165050400 is an abundant number, since it is smaller than the sum of its proper divisors (372196464).

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

165050400 is a wasteful number, since it uses less digits than its factorization.

165050400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68794 (or 68781 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 165050400 is about 12847.1942462158. The cubic root of 165050400 is about 548.5364948612.

The spelling of 165050400 in words is "one hundred sixty-five million, fifty thousand, four hundred".