165533328 has 40 divisors (see below), whose sum is σ = 475143200. Its totient is φ = 55177632.

The previous prime is 165533309. The next prime is 165533341. The reversal of 165533328 is 823335561.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 165533292 and 165533301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191158 + ... + 192021.

It is an arithmetic number, because the mean of its divisors is an integer number (11878580).

Almost surely, 2^165533328 is an apocalyptic number.

165533328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

165533328 is an abundant number, since it is smaller than the sum of its proper divisors (309609872).

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

165533328 is a wasteful number, since it uses less digits than its factorization.

165533328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383196 (or 383184 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 165533328 is about 12865.9755945672. The cubic root of 165533328 is about 549.0709693556.

Adding to 165533328 its reverse (823335561), we get a palindrome (988868889).

It can be divided in two parts, 16553 and 3328, that added together give a square (19881 = 141²).

The spelling of 165533328 in words is "one hundred sixty-five million, five hundred thirty-three thousand, three hundred twenty-eight".