866883343388668 has 12 divisors (see below), whose sum is σ = 1518517282412592. Its totient is φ = 433021262699360.

The previous prime is 866883343388641. The next prime is 866883343388669.

866883343388668 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866883343388669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105102244105 + ... + 105102252352.

It is an arithmetic number, because the mean of its divisors is an integer number (126543106867716).

Almost surely, 2^{866883343388668} is an apocalyptic number.

It is an amenable number.

866883343388668 is a deficient number, since it is larger than the sum of its proper divisors (651633939023924).

866883343388668 is a wasteful number, since it uses less digits than its factorization.

866883343388668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210204497492 (or 210204497490 counting only the distinct ones).

The product of its digits is 110075314176, while the sum is 88.

The spelling of 866883343388668 in words is "eight hundred sixty-six trillion, eight hundred eighty-three billion, three hundred forty-three million, three hundred eighty-eight thousand, six hundred sixty-eight".