256231288380716 has 48 divisors (see below), whose sum is σ = 510154117251072. Its totient is φ = 111549733977600.

The previous prime is 256231288380707. The next prime is 256231288380719. The reversal of 256231288380716 is 617083882132652.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is not an unprimeable number, because it can be changed into a prime (256231288380719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968181356 + ... + 968445971.

It is an arithmetic number, because the mean of its divisors is an integer number (10628210776064).

Almost surely, 2^{256231288380716} is an apocalyptic number.

It is an amenable number.

256231288380716 is a deficient number, since it is larger than the sum of its proper divisors (253922828870356).

256231288380716 is a wasteful number, since it uses less digits than its factorization.

256231288380716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936627470 (or 1936627468 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 256231288380716 in words is "two hundred fifty-six trillion, two hundred thirty-one billion, two hundred eighty-eight million, three hundred eighty thousand, seven hundred sixteen".