165693916 has 12 divisors (see below), whose sum is σ = 291567640. Its totient is φ = 82388880.

The previous prime is 165693911. The next prime is 165693919. The reversal of 165693916 is 619396561.

165693916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165693911) by changing a digit.

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, 113706 + ... + 115153.

Almost surely, 2^165693916 is an apocalyptic number.

It is an amenable number.

165693916 is a deficient number, since it is larger than the sum of its proper divisors (125873724).

165693916 is a wasteful number, since it uses less digits than its factorization.

165693916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229044 (or 229042 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 165693916 is about 12872.2148832281. The cubic root of 165693916 is about 549.2484677723.

The spelling of 165693916 in words is "one hundred sixty-five million, six hundred ninety-three thousand, nine hundred sixteen".