12255723940641 has 64 divisors (see below), whose sum is σ = 17439051168000. Its totient is φ = 7634288987136.

The previous prime is 12255723940609. The next prime is 12255723940657. The reversal of 12255723940641 is 14604932755221.

It is not a de Polignac number, because 12255723940641 - 2⁵ = 12255723940609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12255723940601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 677964295 + ... + 677982371.

It is an arithmetic number, because the mean of its divisors is an integer number (272485174500).

Almost surely, 2^{12255723940641} is an apocalyptic number.

It is an amenable number.

12255723940641 is a deficient number, since it is larger than the sum of its proper divisors (5183327227359).

12255723940641 is a wasteful number, since it uses less digits than its factorization.

12255723940641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18818.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 12255723940641 in words is "twelve trillion, two hundred fifty-five billion, seven hundred twenty-three million, nine hundred forty thousand, six hundred forty-one".