256222602143 has 2 divisors, whose sum is σ = 256222602144. Its totient is φ = 256222602142.

The previous prime is 256222602133. The next prime is 256222602157. The reversal of 256222602143 is 341206222652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256222602143 - 2⁴ = 256222602127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256222602133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128111301071 + 128111301072.

It is an arithmetic number, because the mean of its divisors is an integer number (128111301072).

Almost surely, 2^256222602143 is an apocalyptic number.

256222602143 is a deficient number, since it is larger than the sum of its proper divisors (1).

256222602143 is an equidigital number, since it uses as much as digits as its factorization.

256222602143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 256222602143 its reverse (341206222652), we get a palindrome (597428824795).

The spelling of 256222602143 in words is "two hundred fifty-six billion, two hundred twenty-two million, six hundred two thousand, one hundred forty-three".