256755722011 has 2 divisors, whose sum is σ = 256755722012. Its totient is φ = 256755722010.

The previous prime is 256755721991. The next prime is 256755722033. The reversal of 256755722011 is 110227557652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256755722011 - 2⁵ = 256755721979 is a prime.

It is not a weakly prime, because it can be changed into another prime (256755726011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128377861005 + 128377861006.

It is an arithmetic number, because the mean of its divisors is an integer number (128377861006).

Almost surely, 2^256755722011 is an apocalyptic number.

256755722011 is a deficient number, since it is larger than the sum of its proper divisors (1).

256755722011 is an equidigital number, since it uses as much as digits as its factorization.

256755722011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 256755722011 in words is "two hundred fifty-six billion, seven hundred fifty-five million, seven hundred twenty-two thousand, eleven".