256166682 has 16 divisors (see below), whose sum is σ = 513102720. Its totient is φ = 85260672.

The previous prime is 256166681. The next prime is 256166707. The reversal of 256166682 is 286661652.

256166682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256166681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27682 + ... + 35757.

It is an arithmetic number, because the mean of its divisors is an integer number (32068920).

Almost surely, 2^256166682 is an apocalyptic number.

256166682 is an abundant number, since it is smaller than the sum of its proper divisors (256936038).

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

256166682 is a wasteful number, since it uses less digits than its factorization.

256166682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64117.

The product of its digits is 207360, while the sum is 42.

The square root of 256166682 is about 16005.2079649094. The cubic root of 256166682 is about 635.0981987965.

The spelling of 256166682 in words is "two hundred fifty-six million, one hundred sixty-six thousand, six hundred eighty-two".