165452864 has 28 divisors (see below), whose sum is σ = 332286864. Its totient is φ = 81727104.

The previous prime is 165452851. The next prime is 165452867. The reversal of 165452864 is 468254561.

It is not an unprimeable number, because it can be changed into a prime (165452867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10262 + ... + 20885.

It is an arithmetic number, because the mean of its divisors is an integer number (11867388).

Almost surely, 2^165452864 is an apocalyptic number.

It is an amenable number.

165452864 is an abundant number, since it is smaller than the sum of its proper divisors (166834000).

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

165452864 is an equidigital number, since it uses as much as digits as its factorization.

165452864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31242 (or 31232 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 165452864 is about 12862.8482071429. The cubic root of 165452864 is about 548.9819890730.

The spelling of 165452864 in words is "one hundred sixty-five million, four hundred fifty-two thousand, eight hundred sixty-four".