256246450316663 has 4 divisors (see below), whose sum is σ = 257943446676528. Its totient is φ = 254549453956800.

The previous prime is 256246450316653. The next prime is 256246450316669. The reversal of 256246450316663 is 366613054642652.

256246450316663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256246450316663 - 2⁸ = 256246450316407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256246450316669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848498179706 + ... + 848498180007.

It is an arithmetic number, because the mean of its divisors is an integer number (64485861669132).

Almost surely, 2^{256246450316663} is an apocalyptic number.

256246450316663 is a deficient number, since it is larger than the sum of its proper divisors (1696996359865).

256246450316663 is a wasteful number, since it uses less digits than its factorization.

256246450316663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696996359864.

The product of its (nonzero) digits is 111974400, while the sum is 59.

The spelling of 256246450316663 in words is "two hundred fifty-six trillion, two hundred forty-six billion, four hundred fifty million, three hundred sixteen thousand, six hundred sixty-three".