256426124266 has 32 divisors (see below), whose sum is σ = 418929009408. Its totient is φ = 117010776960.

The previous prime is 256426124249. The next prime is 256426124347. The reversal of 256426124266 is 662421624652.

256426124266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1574731 + ... + 1729921.

It is an arithmetic number, because the mean of its divisors is an integer number (13091531544).

Almost surely, 2^256426124266 is an apocalyptic number.

256426124266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

256426124266 is a deficient number, since it is larger than the sum of its proper divisors (162502885142).

256426124266 is a wasteful number, since it uses less digits than its factorization.

256426124266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155926.

The product of its digits is 1658880, while the sum is 46.

The spelling of 256426124266 in words is "two hundred fifty-six billion, four hundred twenty-six million, one hundred twenty-four thousand, two hundred sixty-six".