256105880845 has 8 divisors (see below), whose sum is σ = 307805018976. Its totient is φ = 204566063376.

The previous prime is 256105880827. The next prime is 256105880881. The reversal of 256105880845 is 548088501652.

256105880845 is digitally balanced in base 2, 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 cyclic number.

It is not a de Polignac number, because 256105880845 - 2⁹ = 256105880333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256105880792 and 256105880801.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 39826627 + ... + 39833056.

It is an arithmetic number, because the mean of its divisors is an integer number (38475627372).

Almost surely, 2^256105880845 is an apocalyptic number.

It is an amenable number.

256105880845 is a deficient number, since it is larger than the sum of its proper divisors (51699138131).

256105880845 is an equidigital number, since it uses as much as digits as its factorization.

256105880845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79660331.

The product of its (nonzero) digits is 3072000, while the sum is 52.

The spelling of 256105880845 in words is "two hundred fifty-six billion, one hundred five million, eight hundred eighty thousand, eight hundred forty-five".