320476668563 has 4 divisors (see below), whose sum is σ = 339328237320. Its totient is φ = 301625099808.

The previous prime is 320476668541. The next prime is 320476668599. The reversal of 320476668563 is 365866674023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320476668563 - 2²⁶ = 320409559699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320476668499 and 320476668508.

It is not an unprimeable number, because it can be changed into a prime (320476668503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9425784353 + ... + 9425784386.

It is an arithmetic number, because the mean of its divisors is an integer number (84832059330).

Almost surely, 2^320476668563 is an apocalyptic number.

320476668563 is a deficient number, since it is larger than the sum of its proper divisors (18851568757).

320476668563 is a wasteful number, since it uses less digits than its factorization.

320476668563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18851568756.

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 320476668563 in words is "three hundred twenty billion, four hundred seventy-six million, six hundred sixty-eight thousand, five hundred sixty-three".