866800083586064 has 80 divisors (see below), whose sum is σ = 1700780330592000. Its totient is φ = 427933082714112.

The previous prime is 866800083585899. The next prime is 866800083586111. The reversal of 866800083586064 is 460685380008668.

It is a junction number, because it is equal to n+sod(n) for n = 866800083585985 and 866800083586003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244768712 + ... + 248284760.

It is an arithmetic number, because the mean of its divisors is an integer number (21259754132400).

Almost surely, 2^{866800083586064} is an apocalyptic number.

It is an amenable number.

866800083586064 is a deficient number, since it is larger than the sum of its proper divisors (833980247005936).

866800083586064 is a wasteful number, since it uses less digits than its factorization.

866800083586064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516840 (or 3516834 counting only the distinct ones).

The product of its (nonzero) digits is 318504960, while the sum is 68.

The spelling of 866800083586064 in words is "eight hundred sixty-six trillion, eight hundred billion, eighty-three million, five hundred eighty-six thousand, sixty-four".