256366331643036 has 24 divisors (see below), whose sum is σ = 598188565786000. Its totient is φ = 85455378364032.

The previous prime is 256366331642929. The next prime is 256366331643049. The reversal of 256366331643036 is 630346133663652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9672840 + ... + 24623088.

Almost surely, 2^{256366331643036} is an apocalyptic number.

It is an amenable number.

256366331643036 is an abundant number, since it is smaller than the sum of its proper divisors (341822234142964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256366331643036 is a wasteful number, since it uses less digits than its factorization.

256366331643036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16379253 (or 16379251 counting only the distinct ones).

The product of its (nonzero) digits is 75582720, while the sum is 57.

The spelling of 256366331643036 in words is "two hundred fifty-six trillion, three hundred sixty-six billion, three hundred thirty-one million, six hundred forty-three thousand, thirty-six".