256316220053029 has 2 divisors, whose sum is σ = 256316220053030. Its totient is φ = 256316220053028.

The previous prime is 256316220053021. The next prime is 256316220053077. The reversal of 256316220053029 is 920350022613652.

256316220053029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173574037562500 + 82742182490529 = 13174750^2 + 9096273^2 .

It is a cyclic number.

It is not a de Polignac number, because 256316220053029 - 2³ = 256316220053021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256316220053029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256316220053021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128158110026514 + 128158110026515.

It is an arithmetic number, because the mean of its divisors is an integer number (128158110026515).

Almost surely, 2^{256316220053029} is an apocalyptic number.

It is an amenable number.

256316220053029 is a deficient number, since it is larger than the sum of its proper divisors (1).

256316220053029 is an equidigital number, since it uses as much as digits as its factorization.

256316220053029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 256316220053029 in words is "two hundred fifty-six trillion, three hundred sixteen billion, two hundred twenty million, fifty-three thousand, twenty-nine".