320085243255 has 16 divisors (see below), whose sum is σ = 512848696320. Its totient is φ = 170474694048.

The previous prime is 320085243251. The next prime is 320085243319. The reversal of 320085243255 is 552342580023.

It is not a de Polignac number, because 320085243255 - 2² = 320085243251 is a prime.

It is a super-2 number, since 2×320085243255² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320085243251) 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, 14828587 + ... + 14850156.

It is an arithmetic number, because the mean of its divisors is an integer number (32053043520).

Almost surely, 2^320085243255 is an apocalyptic number.

320085243255 is a deficient number, since it is larger than the sum of its proper divisors (192763453065).

320085243255 is a wasteful number, since it uses less digits than its factorization.

320085243255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29679470.

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 320085243255 in words is "three hundred twenty billion, eighty-five million, two hundred forty-three thousand, two hundred fifty-five".