165389116 has 12 divisors (see below), whose sum is σ = 292297320. Its totient is φ = 81875600.

The previous prime is 165389111. The next prime is 165389131. The reversal of 165389116 is 611983561.

It is a super-2 number, since 2×165389116² = 54707119382522912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165389111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204286 + ... + 205093.

It is an arithmetic number, because the mean of its divisors is an integer number (24358110).

Almost surely, 2^165389116 is an apocalyptic number.

It is an amenable number.

165389116 is a deficient number, since it is larger than the sum of its proper divisors (126908204).

165389116 is a wasteful number, since it uses less digits than its factorization.

165389116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409484 (or 409482 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 165389116 is about 12860.3699791258. The cubic root of 165389116 is about 548.9114735223.

The spelling of 165389116 in words is "one hundred sixty-five million, three hundred eighty-nine thousand, one hundred sixteen".