6686450546866 has 8 divisors (see below), whose sum is σ = 10029687333120. Its totient is φ = 3343221435828.

The previous prime is 6686450546863. The next prime is 6686450546879.

6686450546866 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 6686450546795 and 6686450546804.

It is not an unprimeable number, because it can be changed into a prime (6686450546863) 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, 1423515 + ... + 3924193.

It is an arithmetic number, because the mean of its divisors is an integer number (1253710916640).

Almost surely, 2^{6686450546866} is an apocalyptic number.

6686450546866 is a deficient number, since it is larger than the sum of its proper divisors (3343236786254).

6686450546866 is a wasteful number, since it uses less digits than its factorization.

6686450546866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837608.

The product of its (nonzero) digits is 1194393600, while the sum is 70.

The spelling of 6686450546866 in words is "six trillion, six hundred eighty-six billion, four hundred fifty million, five hundred forty-six thousand, eight hundred sixty-six".