165369330 has 128 divisors (see below), whose sum is σ = 512870400. Its totient is φ = 37132992.

The previous prime is 165369301. The next prime is 165369371. The reversal of 165369330 is 33963561.

165369330 is a `hidden beast` number, since 1 + 6 + 536 + 93 + 30 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110769 + ... + 112251.

It is an arithmetic number, because the mean of its divisors is an integer number (4006800).

Almost surely, 2^165369330 is an apocalyptic number.

165369330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165369330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256435200).

165369330 is an abundant number, since it is smaller than the sum of its proper divisors (347501070).

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

165369330 is a wasteful number, since it uses less digits than its factorization.

165369330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1559 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 165369330 is about 12859.6006936452. The cubic root of 165369330 is about 548.8895833362.

The spelling of 165369330 in words is "one hundred sixty-five million, three hundred sixty-nine thousand, three hundred thirty".