320445652207 has 2 divisors, whose sum is σ = 320445652208. Its totient is φ = 320445652206.

The previous prime is 320445652201. The next prime is 320445652229. The reversal of 320445652207 is 702256544023.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320445652207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320445652207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320445652201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160222826103 + 160222826104.

It is an arithmetic number, because the mean of its divisors is an integer number (160222826104).

Almost surely, 2^320445652207 is an apocalyptic number.

320445652207 is a deficient number, since it is larger than the sum of its proper divisors (1).

320445652207 is an equidigital number, since it uses as much as digits as its factorization.

320445652207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 320445652207 in words is "three hundred twenty billion, four hundred forty-five million, six hundred fifty-two thousand, two hundred seven".