256235063611 has 2 divisors, whose sum is σ = 256235063612. Its totient is φ = 256235063610.

The previous prime is 256235063533. The next prime is 256235063629. The reversal of 256235063611 is 116360532652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256235063611 - 2²¹ = 256232966459 is a prime.

It is not a weakly prime, because it can be changed into another prime (256235063641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128117531805 + 128117531806.

It is an arithmetic number, because the mean of its divisors is an integer number (128117531806).

Almost surely, 2^256235063611 is an apocalyptic number.

256235063611 is a deficient number, since it is larger than the sum of its proper divisors (1).

256235063611 is an equidigital number, since it uses as much as digits as its factorization.

256235063611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 256235063611 in words is "two hundred fifty-six billion, two hundred thirty-five million, sixty-three thousand, six hundred eleven".