165965030 has 64 divisors (see below), whose sum is σ = 378127872. Its totient is φ = 50941440.

The previous prime is 165965029. The next prime is 165965039. The reversal of 165965030 is 30569561.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165965039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49982 + ... + 53198.

It is an arithmetic number, because the mean of its divisors is an integer number (5908248).

Almost surely, 2^165965030 is an apocalyptic number.

165965030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165965030 is an abundant number, since it is smaller than the sum of its proper divisors (212162842).

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

165965030 is a wasteful number, since it uses less digits than its factorization.

165965030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 165965030 is about 12882.7415560509. The cubic root of 165965030 is about 549.5478708520.

The spelling of 165965030 in words is "one hundred sixty-five million, nine hundred sixty-five thousand, thirty".