165579828389 has 16 divisors (see below), whose sum is σ = 172566086400. Its totient is φ = 158728792320.

The previous prime is 165579828319. The next prime is 165579828391. The reversal of 165579828389 is 983828975561.

165579828389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165579828389 - 2¹⁶ = 165579762853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165579828319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4033037 + ... + 4073885.

It is an arithmetic number, because the mean of its divisors is an integer number (10785380400).

Almost surely, 2^165579828389 is an apocalyptic number.

It is an amenable number.

165579828389 is a deficient number, since it is larger than the sum of its proper divisors (6986258011).

165579828389 is a wasteful number, since it uses less digits than its factorization.

165579828389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42500.

The product of its digits is 261273600, while the sum is 71.

The spelling of 165579828389 in words is "one hundred sixty-five billion, five hundred seventy-nine million, eight hundred twenty-eight thousand, three hundred eighty-nine".