165665314 has 4 divisors (see below), whose sum is σ = 248497974. Its totient is φ = 82832656.

The previous prime is 165665299. The next prime is 165665327. The reversal of 165665314 is 413566561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 165559689 + 105625 = 12867^2 + 325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41416327 + ... + 41416330.

Almost surely, 2^165665314 is an apocalyptic number.

165665314 is a deficient number, since it is larger than the sum of its proper divisors (82832660).

165665314 is an equidigital number, since it uses as much as digits as its factorization.

165665314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82832659.

The product of its digits is 64800, while the sum is 37.

The square root of 165665314 is about 12871.1038376668. The cubic root of 165665314 is about 549.2168622894.

The spelling of 165665314 in words is "one hundred sixty-five million, six hundred sixty-five thousand, three hundred fourteen".