165368836 has 24 divisors (see below), whose sum is σ = 297808280. Its totient is φ = 80289792.

The previous prime is 165368803. The next prime is 165368839. The reversal of 165368836 is 638863561.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 98128836 + 67240000 = 9906^2 + 8200^2 .

It is not an unprimeable number, because it can be changed into a prime (165368839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113086 + ... + 114538.

Almost surely, 2^165368836 is an apocalyptic number.

It is an amenable number.

165368836 is a deficient number, since it is larger than the sum of its proper divisors (132439444).

165368836 is a wasteful number, since it uses less digits than its factorization.

165368836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263 (or 2261 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 165368836 is about 12859.5814861915. The cubic root of 165368836 is about 548.8890367784.

The spelling of 165368836 in words is "one hundred sixty-five million, three hundred sixty-eight thousand, eight hundred thirty-six".