165964992 has 56 divisors (see below), whose sum is σ = 440082432. Its totient is φ = 55200000.

The previous prime is 165964973. The next prime is 165965011. The reversal of 165964992 is 299469561.

165964992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165964973) and next prime (165965011).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143617 + ... + 144767.

Almost surely, 2^165964992 is an apocalyptic number.

165964992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165964992 is an abundant number, since it is smaller than the sum of its proper divisors (274117440).

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

165964992 is a wasteful number, since it uses less digits than its factorization.

165964992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 1907 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 51.

The square root of 165964992 is about 12882.7400812094. The cubic root of 165964992 is about 549.5478289098.

The spelling of 165964992 in words is "one hundred sixty-five million, nine hundred sixty-four thousand, nine hundred ninety-two".