320056660424651 has 2 divisors, whose sum is σ = 320056660424652. Its totient is φ = 320056660424650.

The previous prime is 320056660424597. The next prime is 320056660424653. The reversal of 320056660424651 is 156424066650023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320056660424651 - 2¹⁰ = 320056660423627 is a prime.

Together with 320056660424653, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320056660424651.

It is not a weakly prime, because it can be changed into another prime (320056660424653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160028330212325 + 160028330212326.

It is an arithmetic number, because the mean of its divisors is an integer number (160028330212326).

Almost surely, 2^{320056660424651} is an apocalyptic number.

320056660424651 is a deficient number, since it is larger than the sum of its proper divisors (1).

320056660424651 is an equidigital number, since it uses as much as digits as its factorization.

320056660424651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 320056660424651 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-four thousand, six hundred fifty-one".