320660824247 has 2 divisors, whose sum is σ = 320660824248. Its totient is φ = 320660824246.

The previous prime is 320660824223. The next prime is 320660824261. The reversal of 320660824247 is 742428066023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320660824247 - 2¹⁶ = 320660758711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320660824198 and 320660824207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320660824277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160330412123 + 160330412124.

It is an arithmetic number, because the mean of its divisors is an integer number (160330412124).

Almost surely, 2^320660824247 is an apocalyptic number.

320660824247 is a deficient number, since it is larger than the sum of its proper divisors (1).

320660824247 is an equidigital number, since it uses as much as digits as its factorization.

320660824247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 320660824247 in words is "three hundred twenty billion, six hundred sixty million, eight hundred twenty-four thousand, two hundred forty-seven".