322257040681 has 2 divisors, whose sum is σ = 322257040682. Its totient is φ = 322257040680.

The previous prime is 322257040673. The next prime is 322257040691. The reversal of 322257040681 is 186040752223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315265405225 + 6991635456 = 561485^2 + 83616^2 .

It is a cyclic number.

It is not a de Polignac number, because 322257040681 - 2³ = 322257040673 is a prime.

It is a super-2 number, since 2×322257040681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (322257040621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161128520340 + 161128520341.

It is an arithmetic number, because the mean of its divisors is an integer number (161128520341).

Almost surely, 2^322257040681 is an apocalyptic number.

It is an amenable number.

322257040681 is a deficient number, since it is larger than the sum of its proper divisors (1).

322257040681 is an equidigital number, since it uses as much as digits as its factorization.

322257040681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 322257040681 in words is "three hundred twenty-two billion, two hundred fifty-seven million, forty thousand, six hundred eighty-one".