165210432 has 56 divisors (see below), whose sum is σ = 438070752. Its totient is φ = 54950400.

The previous prime is 165210431. The next prime is 165210457. The reversal of 165210432 is 234012561.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165210431) 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, 155182 + ... + 156242.

It is an arithmetic number, because the mean of its divisors is an integer number (7822692).

Almost surely, 2^165210432 is an apocalyptic number.

165210432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165210432 is an abundant number, since it is smaller than the sum of its proper divisors (272860320).

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

165210432 is a wasteful number, since it uses less digits than its factorization.

165210432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 165210432 is about 12853.4210232140. The cubic root of 165210432 is about 548.7137236273.

Adding to 165210432 its reverse (234012561), we get a palindrome (399222993).

The spelling of 165210432 in words is "one hundred sixty-five million, two hundred ten thousand, four hundred thirty-two".