320432321567 has 2 divisors, whose sum is σ = 320432321568. Its totient is φ = 320432321566.

The previous prime is 320432321509. The next prime is 320432321579. The reversal of 320432321567 is 765123234023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320432321567 - 2³⁸ = 45554414623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320432321567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320432321767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160216160783 + 160216160784.

It is an arithmetic number, because the mean of its divisors is an integer number (160216160784).

Almost surely, 2^320432321567 is an apocalyptic number.

320432321567 is a deficient number, since it is larger than the sum of its proper divisors (1).

320432321567 is an equidigital number, since it uses as much as digits as its factorization.

320432321567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 320432321567 in words is "three hundred twenty billion, four hundred thirty-two million, three hundred twenty-one thousand, five hundred sixty-seven".