6800666886820 has 12 divisors (see below), whose sum is σ = 14281400462364. Its totient is φ = 2720266754720.

The previous prime is 6800666886809. The next prime is 6800666886857. The reversal of 6800666886820 is 286886660086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1097616619584 + 5703050267236 = 1047672^2 + 2388106^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170016672151 + ... + 170016672190.

It is an arithmetic number, because the mean of its divisors is an integer number (1190116705197).

Almost surely, 2^{6800666886820} is an apocalyptic number.

It is an amenable number.

6800666886820 is an abundant number, since it is smaller than the sum of its proper divisors (7480733575544).

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

6800666886820 is a wasteful number, since it uses less digits than its factorization.

6800666886820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340033344350 (or 340033344348 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 64.

The spelling of 6800666886820 in words is "six trillion, eight hundred billion, six hundred sixty-six million, eight hundred eighty-six thousand, eight hundred twenty".