165936924 has 72 divisors (see below), whose sum is σ = 449100288. Its totient is φ = 53518320.

The previous prime is 165936919. The next prime is 165936943. The reversal of 165936924 is 429639561.

It is a self number, because there is not a number n which added to its sum of digits gives 165936924.

It is a congruent number.

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, 27379 + ... + 32885.

It is an arithmetic number, because the mean of its divisors is an integer number (6237504).

Almost surely, 2^165936924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165936924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224550144).

165936924 is an abundant number, since it is smaller than the sum of its proper divisors (283163364).

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

165936924 is a wasteful number, since it uses less digits than its factorization.

165936924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557 (or 5543 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 165936924 is about 12881.6506706245. The cubic root of 165936924 is about 549.5168473196.

It can be divided in two parts, 1659 and 36924, that added together give a palindrome (38583).

The spelling of 165936924 in words is "one hundred sixty-five million, nine hundred thirty-six thousand, nine hundred twenty-four".