256222290967 has 2 divisors, whose sum is σ = 256222290968. Its totient is φ = 256222290966.

The previous prime is 256222290853. The next prime is 256222290979. The reversal of 256222290967 is 769092222652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256222290967 - 2¹¹ = 256222288919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256222290067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128111145483 + 128111145484.

It is an arithmetic number, because the mean of its divisors is an integer number (128111145484).

Almost surely, 2^256222290967 is an apocalyptic number.

256222290967 is a deficient number, since it is larger than the sum of its proper divisors (1).

256222290967 is an equidigital number, since it uses as much as digits as its factorization.

256222290967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 256222290967 in words is "two hundred fifty-six billion, two hundred twenty-two million, two hundred ninety thousand, nine hundred sixty-seven".