165331488 has 96 divisors (see below), whose sum is σ = 506217600. Its totient is φ = 47228160.

The previous prime is 165331487. The next prime is 165331493. The reversal of 165331488 is 884133561.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (165331487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30418 + ... + 35438.

It is an arithmetic number, because the mean of its divisors is an integer number (5273100).

Almost surely, 2^165331488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165331488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253108800).

165331488 is an abundant number, since it is smaller than the sum of its proper divisors (340886112).

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

165331488 is an equidigital number, since it uses as much as digits as its factorization.

165331488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055 (or 5033 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 165331488 is about 12858.1292573998. The cubic root of 165331488 is about 548.8477120812.

The spelling of 165331488 in words is "one hundred sixty-five million, three hundred thirty-one thousand, four hundred eighty-eight".