165964315 has 16 divisors (see below), whose sum is σ = 218227680. Its totient is φ = 120165120.

The previous prime is 165964313. The next prime is 165964321. The reversal of 165964315 is 513469561.

It is a happy number.

165964315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165964315 - 2¹ = 165964313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165964313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6007 + ... + 19183.

It is an arithmetic number, because the mean of its divisors is an integer number (13639230).

Almost surely, 2^165964315 is an apocalyptic number.

165964315 is a deficient number, since it is larger than the sum of its proper divisors (52263365).

165964315 is a wasteful number, since it uses less digits than its factorization.

165964315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13422.

The product of its digits is 97200, while the sum is 40.

The square root of 165964315 is about 12882.7138057166. The cubic root of 165964315 is about 549.5470816751.

The spelling of 165964315 in words is "one hundred sixty-five million, nine hundred sixty-four thousand, three hundred fifteen".