320708341663 has 2 divisors, whose sum is σ = 320708341664. Its totient is φ = 320708341662.

The previous prime is 320708341651. The next prime is 320708341669. The reversal of 320708341663 is 366143807023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320708341663 - 2⁵ = 320708341631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320708341669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160354170831 + 160354170832.

It is an arithmetic number, because the mean of its divisors is an integer number (160354170832).

Almost surely, 2^320708341663 is an apocalyptic number.

320708341663 is a deficient number, since it is larger than the sum of its proper divisors (1).

320708341663 is an equidigital number, since it uses as much as digits as its factorization.

320708341663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 320708341663 in words is "three hundred twenty billion, seven hundred eight million, three hundred forty-one thousand, six hundred sixty-three".