320056660423623 has 16 divisors (see below), whose sum is σ = 450789617828480. Its totient is φ = 201426769354464.

The previous prime is 320056660423601. The next prime is 320056660423627. The reversal of 320056660423623 is 326324066650023.

It is not a de Polignac number, because 320056660423623 - 2¹³ = 320056660415431 is a prime.

It is a super-2 number, since 2×320056660423623² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320056660423627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9920530036 + ... + 9920562297.

It is an arithmetic number, because the mean of its divisors is an integer number (28174351114280).

Almost surely, 2^{320056660423623} is an apocalyptic number.

320056660423623 is a deficient number, since it is larger than the sum of its proper divisors (130732957404857).

320056660423623 is a wasteful number, since it uses less digits than its factorization.

320056660423623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19841092638.

The product of its (nonzero) digits is 5598720, while the sum is 48.

The spelling of 320056660423623 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-three thousand, six hundred twenty-three".