165159583879 has 8 divisors (see below), whose sum is σ = 175261461120. Its totient is φ = 155301125496.

The previous prime is 165159583861. The next prime is 165159583907. The reversal of 165159583879 is 978385951561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165159583879 - 2⁵ = 165159583847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165159583859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60853317 + ... + 60856030.

It is an arithmetic number, because the mean of its divisors is an integer number (21907682640).

Almost surely, 2^165159583879 is an apocalyptic number.

165159583879 is a deficient number, since it is larger than the sum of its proper divisors (10101877241).

165159583879 is a wasteful number, since it uses less digits than its factorization.

165159583879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121709429.

The product of its digits is 81648000, while the sum is 67.

The spelling of 165159583879 in words is "one hundred sixty-five billion, one hundred fifty-nine million, five hundred eighty-three thousand, eight hundred seventy-nine".