165324880 has 160 divisors (see below), whose sum is σ = 461399040. Its totient is φ = 53913600.

The previous prime is 165324839. The next prime is 165324893. The reversal of 165324880 is 88423561.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1636830 + ... + 1636930.

It is an arithmetic number, because the mean of its divisors is an integer number (2883744).

Almost surely, 2^165324880 is an apocalyptic number.

165324880 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 165324880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230699520).

165324880 is an abundant number, since it is smaller than the sum of its proper divisors (296074160).

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

165324880 is a wasteful number, since it uses less digits than its factorization.

165324880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 165324880 is about 12857.8722967682. The cubic root of 165324880 is about 548.8403998343.

It can be divided in two parts, 16532 and 4880, that added together give a palindrome (21412).

The spelling of 165324880 in words is "one hundred sixty-five million, three hundred twenty-four thousand, eight hundred eighty".