165883712 has 56 divisors (see below), whose sum is σ = 343509600. Its totient is φ = 79382016.

The previous prime is 165883703. The next prime is 165883787. The reversal of 165883712 is 217388561.

It is a self number, because there is not a number n which added to its sum of digits gives 165883712.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 257663 + ... + 258305.

It is an arithmetic number, because the mean of its divisors is an integer number (6134100).

Almost surely, 2^165883712 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 165883712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171754800).

165883712 is an abundant number, since it is smaller than the sum of its proper divisors (177625888).

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

165883712 is a wasteful number, since it uses less digits than its factorization.

165883712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 813 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 165883712 is about 12879.5850864847. The cubic root of 165883712 is about 549.4581020728.

The spelling of 165883712 in words is "one hundred sixty-five million, eight hundred eighty-three thousand, seven hundred twelve".