165433660 has 96 divisors (see below), whose sum is σ = 412917120. Its totient is φ = 54494208.

The previous prime is 165433643. The next prime is 165433669. The reversal of 165433660 is 66334561.

165433660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165433669) 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, 564474 + ... + 564766.

It is an arithmetic number, because the mean of its divisors is an integer number (4301220).

Almost surely, 2^165433660 is an apocalyptic number.

165433660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165433660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206458560).

165433660 is an abundant number, since it is smaller than the sum of its proper divisors (247483460).

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

165433660 is a wasteful number, since it uses less digits than its factorization.

165433660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 165433660 is about 12862.1016945132. The cubic root of 165433660 is about 548.9607482640.

Subtracting from 165433660 its reverse (66334561), we obtain a palindrome (99099099).

The spelling of 165433660 in words is "one hundred sixty-five million, four hundred thirty-three thousand, six hundred sixty".