256613101743244 has 6 divisors (see below), whose sum is σ = 449072928050684. Its totient is φ = 128306550871620.

The previous prime is 256613101743233. The next prime is 256613101743259. The reversal of 256613101743244 is 442347101316652.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32076637717902 + ... + 32076637717909.

Almost surely, 2^{256613101743244} is an apocalyptic number.

It is an amenable number.

256613101743244 is a deficient number, since it is larger than the sum of its proper divisors (192459826307440).

256613101743244 is a wasteful number, since it uses less digits than its factorization.

256613101743244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64153275435815 (or 64153275435813 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 256613101743244 in words is "two hundred fifty-six trillion, six hundred thirteen billion, one hundred one million, seven hundred forty-three thousand, two hundred forty-four".