165565060 has 24 divisors (see below), whose sum is σ = 359677080. Its totient is φ = 63942144.

The previous prime is 165565051. The next prime is 165565061. The reversal of 165565060 is 60565561.

It can be written as a sum of positive squares in 4 ways, for example, as 28815424 + 136749636 = 5368^2 + 11694^2 .

It is not an unprimeable number, because it can be changed into a prime (165565061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142149 + ... + 143308.

It is an arithmetic number, because the mean of its divisors is an integer number (14986545).

Almost surely, 2^165565060 is an apocalyptic number.

165565060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165565060 is an abundant number, since it is smaller than the sum of its proper divisors (194112020).

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

165565060 is a wasteful number, since it uses less digits than its factorization.

165565060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285495 (or 285493 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 165565060 is about 12867.2087105168. The cubic root of 165565060 is about 549.1060519319.

The spelling of 165565060 in words is "one hundred sixty-five million, five hundred sixty-five thousand, sixty".