256026023663 has 8 divisors (see below), whose sum is σ = 269530375920. Its totient is φ = 242524601280.

The previous prime is 256026023653. The next prime is 256026023699. The reversal of 256026023663 is 366320620652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256026023663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256026023663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256026023653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551948 + ... + 903713.

It is an arithmetic number, because the mean of its divisors is an integer number (33691296990).

Almost surely, 2^256026023663 is an apocalyptic number.

256026023663 is a deficient number, since it is larger than the sum of its proper divisors (13504352257).

256026023663 is a wasteful number, since it uses less digits than its factorization.

256026023663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464937.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 256026023663 in words is "two hundred fifty-six billion, twenty-six million, twenty-three thousand, six hundred sixty-three".