12584517016866 has 16 divisors (see below), whose sum is σ = 25169078325888. Its totient is φ = 4194831623600.

The previous prime is 12584517016829. The next prime is 12584517016867. The reversal of 12584517016866 is 66861071548521.

12584517016866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12584517016867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2715031 + ... + 5704421.

It is an arithmetic number, because the mean of its divisors is an integer number (1573067395368).

Almost surely, 2^{12584517016866} is an apocalyptic number.

12584517016866 is an abundant number, since it is smaller than the sum of its proper divisors (12584561309022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12584517016866 is a wasteful number, since it uses less digits than its factorization.

12584517016866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691017.

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 12584517016866 in words is "twelve trillion, five hundred eighty-four billion, five hundred seventeen million, sixteen thousand, eight hundred sixty-six".