165765992 has 32 divisors (see below), whose sum is σ = 362776320. Its totient is φ = 69529920.

The previous prime is 165765983. The next prime is 165766067. The reversal of 165765992 is 299567561.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 165765992.

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, 28859 + ... + 34122.

It is an arithmetic number, because the mean of its divisors is an integer number (11336760).

Almost surely, 2^165765992 is an apocalyptic number.

It is an amenable number.

165765992 is an abundant number, since it is smaller than the sum of its proper divisors (197010328).

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

165765992 is a wasteful number, since it uses less digits than its factorization.

165765992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63041 (or 63037 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 50.

The square root of 165765992 is about 12875.0142524193. The cubic root of 165765992 is about 549.3280963122.

The spelling of 165765992 in words is "one hundred sixty-five million, seven hundred sixty-five thousand, nine hundred ninety-two".