256235063564 has 6 divisors (see below), whose sum is σ = 448411361244. Its totient is φ = 128117531780.

The previous prime is 256235063533. The next prime is 256235063611. The reversal of 256235063564 is 465360532652.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32029382942 + ... + 32029382949.

It is an arithmetic number, because the mean of its divisors is an integer number (74735226874).

Almost surely, 2^256235063564 is an apocalyptic number.

It is an amenable number.

256235063564 is a deficient number, since it is larger than the sum of its proper divisors (192176297680).

256235063564 is a wasteful number, since it uses less digits than its factorization.

256235063564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64058765895 (or 64058765893 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 256235063564 in words is "two hundred fifty-six billion, two hundred thirty-five million, sixty-three thousand, five hundred sixty-four".