256574042111 has 2 divisors, whose sum is σ = 256574042112. Its totient is φ = 256574042110.

The previous prime is 256574042083. The next prime is 256574042129. The reversal of 256574042111 is 111240475652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256574042111 - 2¹⁴ = 256574025727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256574042141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128287021055 + 128287021056.

It is an arithmetic number, because the mean of its divisors is an integer number (128287021056).

Almost surely, 2^256574042111 is an apocalyptic number.

256574042111 is a deficient number, since it is larger than the sum of its proper divisors (1).

256574042111 is an equidigital number, since it uses as much as digits as its factorization.

256574042111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 256574042111 in words is "two hundred fifty-six billion, five hundred seventy-four million, forty-two thousand, one hundred eleven".