165104587328 has 112 divisors (see below), whose sum is σ = 348609970800. Its totient is φ = 77435043840.

The previous prime is 165104587327. The next prime is 165104587343. The reversal of 165104587328 is 823785401561.

It can be written as a sum of positive squares in 8 ways, for example, as 20485624384 + 144618962944 = 143128^2 + 380288^2 .

It is not an unprimeable number, because it can be changed into a prime (165104587327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60498668 + ... + 60501396.

It is an arithmetic number, because the mean of its divisors is an integer number (3112589025).

Almost surely, 2^165104587328 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 165104587328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174304985400).

165104587328 is an abundant number, since it is smaller than the sum of its proper divisors (183505383472).

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

165104587328 is a wasteful number, since it uses less digits than its factorization.

165104587328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

Adding to 165104587328 its reverse (823785401561), we get a palindrome (988889988889).

The spelling of 165104587328 in words is "one hundred sixty-five billion, one hundred four million, five hundred eighty-seven thousand, three hundred twenty-eight".