165475456 has 32 divisors (see below), whose sum is σ = 330810480. Its totient is φ = 82448640.

The previous prime is 165475441. The next prime is 165475459. The reversal of 165475456 is 654574561.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (165475459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37191 + ... + 41401.

Almost surely, 2^165475456 is an apocalyptic number.

165475456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165475456 is a deficient number, since it is larger than the sum of its proper divisors (165335024).

165475456 is an equidigital number, since it uses as much as digits as its factorization.

165475456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532 (or 4520 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 165475456 is about 12863.7263652489. The cubic root of 165475456 is about 549.0069751150.

The spelling of 165475456 in words is "one hundred sixty-five million, four hundred seventy-five thousand, four hundred fifty-six".