320155206251079 has 16 divisors (see below), whose sum is σ = 426906194169600. Its totient is φ = 213420511935936.

The previous prime is 320155206251021. The next prime is 320155206251081. The reversal of 320155206251079 is 970152602551023.

It is not a de Polignac number, because 320155206251079 - 2⁸ = 320155206250823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320155206251099) 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, 3147396582 + ... + 3147498300.

It is an arithmetic number, because the mean of its divisors is an integer number (26681637135600).

Almost surely, 2^{320155206251079} is an apocalyptic number.

320155206251079 is a deficient number, since it is larger than the sum of its proper divisors (106750987918521).

320155206251079 is a wasteful number, since it uses less digits than its factorization.

320155206251079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171494.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 320155206251079 in words is "three hundred twenty trillion, one hundred fifty-five billion, two hundred six million, two hundred fifty-one thousand, seventy-nine".