320155206251151 has 32 divisors (see below), whose sum is σ = 451337558031360. Its totient is φ = 201466617859584.

The previous prime is 320155206251099. The next prime is 320155206251213. The reversal of 320155206251151 is 151152602551023.

It is not a de Polignac number, because 320155206251151 - 2¹³ = 320155206242959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320155206253151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87868051 + ... + 91439076.

It is an arithmetic number, because the mean of its divisors is an integer number (14104298688480).

Almost surely, 2^{320155206251151} is an apocalyptic number.

320155206251151 is a deficient number, since it is larger than the sum of its proper divisors (131182351780209).

320155206251151 is a wasteful number, since it uses less digits than its factorization.

320155206251151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179307495.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 320155206251151 in words is "three hundred twenty trillion, one hundred fifty-five billion, two hundred six million, two hundred fifty-one thousand, one hundred fifty-one".