256015200587344 has 40 divisors (see below), whose sum is σ = 541175470767360. Its totient is φ = 116359269772800.

The previous prime is 256015200587323. The next prime is 256015200587441. The reversal of 256015200587344 is 443785002510652.

It is a junction number, because it is equal to n+sod(n) for n = 256015200587291 and 256015200587300.

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, 68653024 + ... + 72286015.

It is an arithmetic number, because the mean of its divisors is an integer number (13529386769184).

Almost surely, 2^{256015200587344} is an apocalyptic number.

It is an amenable number.

256015200587344 is an abundant number, since it is smaller than the sum of its proper divisors (285160270180016).

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

256015200587344 is a wasteful number, since it uses less digits than its factorization.

256015200587344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140949379 (or 140949373 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 52.

The spelling of 256015200587344 in words is "two hundred fifty-six trillion, fifteen billion, two hundred million, five hundred eighty-seven thousand, three hundred forty-four".