256696243333 has 2 divisors, whose sum is σ = 256696243334. Its totient is φ = 256696243332.

The previous prime is 256696243327. The next prime is 256696243339. The reversal of 256696243333 is 333342696652.

It is a balanced prime because it is at equal distance from previous prime (256696243327) and next prime (256696243339).

It can be written as a sum of positive squares in only one way, i.e., 162298596769 + 94397646564 = 402863^2 + 307242^2 .

It is a cyclic number.

It is not a de Polignac number, because 256696243333 - 2⁹ = 256696242821 is a prime.

It is a super-2 number, since 2×256696243333² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256696243339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128348121666 + 128348121667.

It is an arithmetic number, because the mean of its divisors is an integer number (128348121667).

Almost surely, 2^256696243333 is an apocalyptic number.

It is an amenable number.

256696243333 is a deficient number, since it is larger than the sum of its proper divisors (1).

256696243333 is an equidigital number, since it uses as much as digits as its factorization.

256696243333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 52.

The spelling of 256696243333 in words is "two hundred fifty-six billion, six hundred ninety-six million, two hundred forty-three thousand, three hundred thirty-three".