320884052257 has 2 divisors, whose sum is σ = 320884052258. Its totient is φ = 320884052256.

The previous prime is 320884052233. The next prime is 320884052369. The reversal of 320884052257 is 752250488023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278695303056 + 42188749201 = 527916^2 + 205399^2 .

It is a cyclic number.

It is not a de Polignac number, because 320884052257 - 2²⁷ = 320749834529 is a prime.

It is not a weakly prime, because it can be changed into another prime (320884050257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160442026128 + 160442026129.

It is an arithmetic number, because the mean of its divisors is an integer number (160442026129).

Almost surely, 2^320884052257 is an apocalyptic number.

It is an amenable number.

320884052257 is a deficient number, since it is larger than the sum of its proper divisors (1).

320884052257 is an equidigital number, since it uses as much as digits as its factorization.

320884052257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1075200, while the sum is 46.

The spelling of 320884052257 in words is "three hundred twenty billion, eight hundred eighty-four million, fifty-two thousand, two hundred fifty-seven".