256743546116043 has 16 divisors (see below), whose sum is σ = 391356574476800. Its totient is φ = 146662480132416.

The previous prime is 256743546116023. The next prime is 256743546116081. The reversal of 256743546116043 is 340611645347652.

It is not a de Polignac number, because 256743546116043 - 2⁸ = 256743546115787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256743546116023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2004836455 + ... + 2004964512.

It is an arithmetic number, because the mean of its divisors is an integer number (24459785904800).

Almost surely, 2^{256743546116043} is an apocalyptic number.

256743546116043 is a deficient number, since it is larger than the sum of its proper divisors (134613028360757).

256743546116043 is a wasteful number, since it uses less digits than its factorization.

256743546116043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009804026.

The product of its (nonzero) digits is 43545600, while the sum is 57.

The spelling of 256743546116043 in words is "two hundred fifty-six trillion, seven hundred forty-three billion, five hundred forty-six million, one hundred sixteen thousand, forty-three".