165343312 has 20 divisors (see below), whose sum is σ = 320981440. Its totient is φ = 82509408.

The previous prime is 165343289. The next prime is 165343327. The reversal of 165343312 is 213343561.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1512 + ... + 18247.

It is an arithmetic number, because the mean of its divisors is an integer number (16049072).

Almost surely, 2^165343312 is an apocalyptic number.

It is an amenable number.

165343312 is a deficient number, since it is larger than the sum of its proper divisors (155638128).

165343312 is a wasteful number, since it uses less digits than its factorization.

165343312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20290 (or 20284 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 165343312 is about 12858.5890361268. The cubic root of 165343312 is about 548.8607957366.

Adding to 165343312 its reverse (213343561), we get a palindrome (378686873).

The spelling of 165343312 in words is "one hundred sixty-five million, three hundred forty-three thousand, three hundred twelve".