168944664 has 64 divisors (see below), whose sum is σ = 495763200. Its totient is φ = 46963584.

The previous prime is 168944647. The next prime is 168944687. The reversal of 168944664 is 466449861.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7374 + ... + 19805.

It is an arithmetic number, because the mean of its divisors is an integer number (7746300).

Almost surely, 2^168944664 is an apocalyptic number.

168944664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

168944664 is an abundant number, since it is smaller than the sum of its proper divisors (326818536).

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

168944664 is a wasteful number, since it uses less digits than its factorization.

168944664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27232 (or 27228 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The square root of 168944664 is about 12997.8715180602. The cubic root of 168944664 is about 552.8171315295.

The spelling of 168944664 in words is "one hundred sixty-eight million, nine hundred forty-four thousand, six hundred sixty-four".