8466866040816 has 240 divisors, whose sum is σ = 25364162304000. Its totient is φ = 2628840614400.

The previous prime is 8466866040799. The next prime is 8466866040817. The reversal of 8466866040816 is 6180406686648.

8466866040816 is a `hidden beast` number, since 8 + 4 + 6 + 6 + 8 + 6 + 604 + 0 + 8 + 16 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8466866040817) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51576466 + ... + 51740366.

It is an arithmetic number, because the mean of its divisors is an integer number (105684009600).

Almost surely, 2^{8466866040816} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8466866040816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12682081152000).

8466866040816 is an abundant number, since it is smaller than the sum of its proper divisors (16897296263184).

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

8466866040816 is a wasteful number, since it uses less digits than its factorization.

8466866040816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164252 (or 164243 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 63.

The spelling of 8466866040816 in words is "eight trillion, four hundred sixty-six billion, eight hundred sixty-six million, forty thousand, eight hundred sixteen".