320280707057 has 2 divisors, whose sum is σ = 320280707058. Its totient is φ = 320280707056.

The previous prime is 320280707051. The next prime is 320280707069. The reversal of 320280707057 is 750707082023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300286464256 + 19994242801 = 547984^2 + 141401^2 .

It is a cyclic number.

It is not a de Polignac number, because 320280707057 - 2²⁰ = 320279658481 is a prime.

It is not a weakly prime, because it can be changed into another prime (320280707051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160140353528 + 160140353529.

It is an arithmetic number, because the mean of its divisors is an integer number (160140353529).

Almost surely, 2^320280707057 is an apocalyptic number.

It is an amenable number.

320280707057 is a deficient number, since it is larger than the sum of its proper divisors (1).

320280707057 is an equidigital number, since it uses as much as digits as its factorization.

320280707057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 320280707057 in words is "three hundred twenty billion, two hundred eighty million, seven hundred seven thousand, fifty-seven".