165161592 has 40 divisors (see below), whose sum is σ = 462607200. Its totient is φ = 55053648.

The previous prime is 165161561. The next prime is 165161593. The reversal of 165161592 is 295161561.

165161592 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 61 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165161593) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 126792 + ... + 128087.

It is an arithmetic number, because the mean of its divisors is an integer number (11565180).

Almost surely, 2^165161592 is an apocalyptic number.

165161592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165161592 is an abundant number, since it is smaller than the sum of its proper divisors (297445608).

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

165161592 is a wasteful number, since it uses less digits than its factorization.

165161592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254897 (or 254884 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 165161592 is about 12851.5209994771. The cubic root of 165161592 is about 548.6596475031.

The spelling of 165161592 in words is "one hundred sixty-five million, one hundred sixty-one thousand, five hundred ninety-two".