165927720 has 96 divisors (see below), whose sum is σ = 579074400. Its totient is φ = 37924992.

The previous prime is 165927689. The next prime is 165927733. The reversal of 165927720 is 27729561.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8230 + ... + 19989.

It is an arithmetic number, because the mean of its divisors is an integer number (6032025).

Almost surely, 2^165927720 is an apocalyptic number.

165927720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165927720 is an abundant number, since it is smaller than the sum of its proper divisors (413146680).

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

165927720 is a wasteful number, since it uses less digits than its factorization.

165927720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28247 (or 28236 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 165927720 is about 12881.2934133184. The cubic root of 165927720 is about 549.5066871405.

The spelling of 165927720 in words is "one hundred sixty-five million, nine hundred twenty-seven thousand, seven hundred twenty".