165315156 has 12 divisors (see below), whose sum is σ = 385735392. Its totient is φ = 55105048.

The previous prime is 165315151. The next prime is 165315173. The reversal of 165315156 is 651513561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165315151) 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, 6888120 + ... + 6888143.

It is an arithmetic number, because the mean of its divisors is an integer number (32144616).

Almost surely, 2^165315156 is an apocalyptic number.

It is an amenable number.

165315156 is an abundant number, since it is smaller than the sum of its proper divisors (220420236).

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

165315156 is a wasteful number, since it uses less digits than its factorization.

165315156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776270 (or 13776268 counting only the distinct ones).

The product of its digits is 13500, while the sum is 33.

The square root of 165315156 is about 12857.4941571054. The cubic root of 165315156 is about 548.8296391456.

The spelling of 165315156 in words is "one hundred sixty-five million, three hundred fifteen thousand, one hundred fifty-six".