165116368 has 10 divisors (see below), whose sum is σ = 319912994. Its totient is φ = 82558176.

The previous prime is 165116363. The next prime is 165116411. The reversal of 165116368 is 863611561.

It can be written as a sum of positive squares in only one way, i.e., 139996224 + 25120144 = 11832^2 + 5012^2 .

It is a super-2 number, since 2×165116368² = 54526829963022848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165116363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5159871 + ... + 5159902.

Almost surely, 2^165116368 is an apocalyptic number.

It is an amenable number.

165116368 is a deficient number, since it is larger than the sum of its proper divisors (154796626).

165116368 is a wasteful number, since it uses less digits than its factorization.

165116368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319781 (or 10319775 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 165116368 is about 12849.7613985630. The cubic root of 165116368 is about 548.6095655427.

The spelling of 165116368 in words is "one hundred sixty-five million, one hundred sixteen thousand, three hundred sixty-eight".