165355266 has 8 divisors (see below), whose sum is σ = 330710544. Its totient is φ = 55118420.

The previous prime is 165355261. The next prime is 165355291. The reversal of 165355266 is 662553561.

165355266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

165355266 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165355261) 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, 13779600 + ... + 13779611.

It is an arithmetic number, because the mean of its divisors is an integer number (41338818).

Almost surely, 2^165355266 is an apocalyptic number.

165355266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

165355266 is a wasteful number, since it uses less digits than its factorization.

165355266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27559216.

The product of its digits is 162000, while the sum is 39.

The square root of 165355266 is about 12859.0538532195. The cubic root of 165355266 is about 548.8740226073.

The spelling of 165355266 in words is "one hundred sixty-five million, three hundred fifty-five thousand, two hundred sixty-six".