165522066 has 16 divisors (see below), whose sum is σ = 331488288. Its totient is φ = 55100000.

The previous prime is 165522041. The next prime is 165522067. The reversal of 165522066 is 660225561.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (165522067) 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, 13560 + ... + 22691.

It is an arithmetic number, because the mean of its divisors is an integer number (20718018).

Almost surely, 2^165522066 is an apocalyptic number.

165522066 is an abundant number, since it is smaller than the sum of its proper divisors (165966222).

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

165522066 is a wasteful number, since it uses less digits than its factorization.

165522066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37017.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 165522066 is about 12865.5379211287. The cubic root of 165522066 is about 549.0585171251.

The spelling of 165522066 in words is "one hundred sixty-five million, five hundred twenty-two thousand, sixty-six".