165604368 has 20 divisors (see below), whose sum is σ = 427811408. Its totient is φ = 55201440.

The previous prime is 165604363. The next prime is 165604403. The reversal of 165604368 is 863406561.

165604368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (165604363) 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, 1724998 + ... + 1725093.

Almost surely, 2^165604368 is an apocalyptic number.

It is an amenable number.

165604368 is an abundant number, since it is smaller than the sum of its proper divisors (262207040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165604368 is a wasteful number, since it uses less digits than its factorization.

165604368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450102 (or 3450096 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 165604368 is about 12868.7360684723. The cubic root of 165604368 is about 549.1495042415.

The spelling of 165604368 in words is "one hundred sixty-five million, six hundred four thousand, three hundred sixty-eight".