165385876 has 6 divisors (see below), whose sum is σ = 289425290. Its totient is φ = 82692936.

The previous prime is 165385867. The next prime is 165385879. The reversal of 165385876 is 678583561.

It can be written as a sum of positive squares in only one way, i.e., 113976976 + 51408900 = 10676^2 + 7170^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165385879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20673231 + ... + 20673238.

Almost surely, 2^165385876 is an apocalyptic number.

It is an amenable number.

165385876 is a deficient number, since it is larger than the sum of its proper divisors (124039414).

165385876 is a wasteful number, since it uses less digits than its factorization.

165385876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41346473 (or 41346471 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The square root of 165385876 is about 12860.2440101267. The cubic root of 165385876 is about 548.9078890768.

The spelling of 165385876 in words is "one hundred sixty-five million, three hundred eighty-five thousand, eight hundred seventy-six".