256163514071 has 2 divisors, whose sum is σ = 256163514072. Its totient is φ = 256163514070.

The previous prime is 256163514037. The next prime is 256163514097. The reversal of 256163514071 is 170415361652.

It is a happy number.

256163514071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256163514071 - 2²⁶ = 256096405207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256163514011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128081757035 + 128081757036.

It is an arithmetic number, because the mean of its divisors is an integer number (128081757036).

Almost surely, 2^256163514071 is an apocalyptic number.

256163514071 is a deficient number, since it is larger than the sum of its proper divisors (1).

256163514071 is an equidigital number, since it uses as much as digits as its factorization.

256163514071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 256163514071 in words is "two hundred fifty-six billion, one hundred sixty-three million, five hundred fourteen thousand, seventy-one".