256705250112 has 112 divisors (see below), whose sum is σ = 754927542720. Its totient is φ = 85538750976.

The previous prime is 256705250111. The next prime is 256705250147. The reversal of 256705250112 is 211052507652.

256705250112 is a `hidden beast` number, since 2 + 56 + 70 + 525 + 0 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256705250111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5275558 + ... + 5323994.

Almost surely, 2^256705250112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256705250112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377463771360).

256705250112 is an abundant number, since it is smaller than the sum of its proper divisors (498222292608).

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

256705250112 is a wasteful number, since it uses less digits than its factorization.

256705250112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51525 (or 51509 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 256705250112 its reverse (211052507652), we get a palindrome (467757757764).

The spelling of 256705250112 in words is "two hundred fifty-six billion, seven hundred five million, two hundred fifty thousand, one hundred twelve".