320562203146481 has 2 divisors, whose sum is σ = 320562203146482. Its totient is φ = 320562203146480.

The previous prime is 320562203146469. The next prime is 320562203146511. The reversal of 320562203146481 is 184641302265023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260806350250000 + 59755852896481 = 16149500^2 + 7730191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320562203146481 is a prime.

It is a super-2 number, since 2×320562203146481² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (320562203146681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160281101573240 + 160281101573241.

It is an arithmetic number, because the mean of its divisors is an integer number (160281101573241).

Almost surely, 2^{320562203146481} is an apocalyptic number.

It is an amenable number.

320562203146481 is a deficient number, since it is larger than the sum of its proper divisors (1).

320562203146481 is an equidigital number, since it uses as much as digits as its factorization.

320562203146481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 320562203146481 in words is "three hundred twenty trillion, five hundred sixty-two billion, two hundred three million, one hundred forty-six thousand, four hundred eighty-one".