165163266 has 16 divisors (see below), whose sum is σ = 367029600. Its totient is φ = 55054404.

The previous prime is 165163259. The next prime is 165163267. The reversal of 165163266 is 662361561.

165163266 is a `hidden beast` number, since 16 + 5 + 1 + 632 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 165163266.

It is not an unprimeable number, because it can be changed into a prime (165163267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529236 + ... + 1529343.

It is an arithmetic number, because the mean of its divisors is an integer number (22939350).

Almost surely, 2^165163266 is an apocalyptic number.

165163266 is an abundant number, since it is smaller than the sum of its proper divisors (201866334).

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

165163266 is a wasteful number, since it uses less digits than its factorization.

165163266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058590 (or 3058584 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 165163266 is about 12851.5861277898. The cubic root of 165163266 is about 548.6615011486.

The spelling of 165163266 in words is "one hundred sixty-five million, one hundred sixty-three thousand, two hundred sixty-six".