256300274666 has 8 divisors (see below), whose sum is σ = 384838356864. Its totient is φ = 128020822380.

The previous prime is 256300274639. The next prime is 256300274821. The reversal of 256300274666 is 666472003652.

256300274666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 256300274666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64655000 + ... + 64658963.

It is an arithmetic number, because the mean of its divisors is an integer number (48104794608).

Almost surely, 2^256300274666 is an apocalyptic number.

256300274666 is a deficient number, since it is larger than the sum of its proper divisors (128538082198).

256300274666 is a wasteful number, since it uses less digits than its factorization.

256300274666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129314956.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 256300274666 in words is "two hundred fifty-six billion, three hundred million, two hundred seventy-four thousand, six hundred sixty-six".