165115408 has 10 divisors (see below), whose sum is σ = 319911134. Its totient is φ = 82557696.

The previous prime is 165115387. The next prime is 165115417. The reversal of 165115408 is 804511561.

165115408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 122500624 + 42614784 = 11068^2 + 6528^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 165115408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5159841 + ... + 5159872.

Almost surely, 2^165115408 is an apocalyptic number.

It is an amenable number.

165115408 is a deficient number, since it is larger than the sum of its proper divisors (154795726).

165115408 is a wasteful number, since it uses less digits than its factorization.

165115408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319721 (or 10319715 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 165115408 is about 12849.7240437295. The cubic root of 165115408 is about 548.6085023204.

Adding to 165115408 its reverse (804511561), we get a palindrome (969626969).

The spelling of 165115408 in words is "one hundred sixty-five million, one hundred fifteen thousand, four hundred eight".