165373992 has 192 divisors, whose sum is σ = 537788160. Its totient is φ = 44928000.

The previous prime is 165373969. The next prime is 165374021. The reversal of 165373992 is 299373561.

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 47 ways as a sum of consecutive naturals, for example, 1095117 + ... + 1095267.

It is an arithmetic number, because the mean of its divisors is an integer number (2800980).

Almost surely, 2^165373992 is an apocalyptic number.

165373992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165373992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268894080).

165373992 is an abundant number, since it is smaller than the sum of its proper divisors (372414168).

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

165373992 is a wasteful number, since it uses less digits than its factorization.

165373992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 257 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 165373992 is about 12859.7819577161. The cubic root of 165373992 is about 548.8947412842.

The spelling of 165373992 in words is "one hundred sixty-five million, three hundred seventy-three thousand, nine hundred ninety-two".