866860680603 has 8 divisors (see below), whose sum is σ = 1195669904400. Its totient is φ = 557979288608.

The previous prime is 866860680557. The next prime is 866860680667. The reversal of 866860680603 is 306086068668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 866860680603 - 2¹⁰ = 866860679579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (866860680503) 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, 4981957848 + ... + 4981958021.

It is an arithmetic number, because the mean of its divisors is an integer number (149458738050).

Almost surely, 2^866860680603 is an apocalyptic number.

866860680603 is a deficient number, since it is larger than the sum of its proper divisors (328809223797).

866860680603 is a wasteful number, since it uses less digits than its factorization.

866860680603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9963915901.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 866860680603 in words is "eight hundred sixty-six billion, eight hundred sixty million, six hundred eighty thousand, six hundred three".