165896992 has 12 divisors (see below), whose sum is σ = 326609766. Its totient is φ = 82948480.

The previous prime is 165896971. The next prime is 165897013. The reversal of 165896992 is 299698561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (165896971) and next prime (165897013).

It can be written as a sum of positive squares in only one way, i.e., 157854096 + 8042896 = 12564^2 + 2836^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2592109 + ... + 2592172.

Almost surely, 2^165896992 is an apocalyptic number.

It is an amenable number.

165896992 is a deficient number, since it is larger than the sum of its proper divisors (160712774).

165896992 is an equidigital number, since it uses as much as digits as its factorization.

165896992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184291 (or 5184283 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 55.

The square root of 165896992 is about 12880.1006207250. The cubic root of 165896992 is about 549.4727641691.

The spelling of 165896992 in words is "one hundred sixty-five million, eight hundred ninety-six thousand, nine hundred ninety-two".