320056660423345 has 8 divisors (see below), whose sum is σ = 385025768052840. Its totient is φ = 255406811308800.

The previous prime is 320056660423289. The next prime is 320056660423477. The reversal of 320056660423345 is 543324066650023.

It can be written as a sum of positive squares in 4 ways, for example, as 105378252382881 + 214678408040464 = 10265391^2 + 14651908^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-320056660423345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79814626530 + ... + 79814630539.

It is an arithmetic number, because the mean of its divisors is an integer number (48128221006605).

Almost surely, 2^{320056660423345} is an apocalyptic number.

It is an amenable number.

320056660423345 is a deficient number, since it is larger than the sum of its proper divisors (64969107629495).

320056660423345 is a wasteful number, since it uses less digits than its factorization.

320056660423345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159629257475.

The product of its (nonzero) digits is 9331200, while the sum is 49.

The spelling of 320056660423345 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-three thousand, three hundred forty-five".