656345656225641 has 16 divisors (see below), whose sum is σ = 926624620152000. Its totient is φ = 411816286437888.

The previous prime is 656345656225631. The next prime is 656345656225681. The reversal of 656345656225641 is 146522656543656.

656345656225641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 656345656225641 - 2¹⁸ = 656345655963497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (656345656225601) 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, 129346291 + ... + 134324808.

It is an arithmetic number, because the mean of its divisors is an integer number (57914038759500).

Almost surely, 2^{656345656225641} is an apocalyptic number.

It is an amenable number.

656345656225641 is a deficient number, since it is larger than the sum of its proper divisors (270278963926359).

656345656225641 is a wasteful number, since it uses less digits than its factorization.

656345656225641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263719928.

The product of its digits is 933120000, while the sum is 66.

The spelling of 656345656225641 in words is "six hundred fifty-six trillion, three hundred forty-five billion, six hundred fifty-six million, two hundred twenty-five thousand, six hundred forty-one".