6683212123866 has 32 divisors (see below), whose sum is σ = 14851667157120. Its totient is φ = 2227724675712.

The previous prime is 6683212123811. The next prime is 6683212123867.

6683212123866 is a `hidden beast` number, since 6 + 6 + 8 + 321 + 21 + 238 + 66 = 666.

6683212123866 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6683212123867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17463466 + ... + 17842058.

It is an arithmetic number, because the mean of its divisors is an integer number (464114598660).

Almost surely, 2^{6683212123866} is an apocalyptic number.

6683212123866 is an abundant number, since it is smaller than the sum of its proper divisors (8168455033254).

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

6683212123866 is a wasteful number, since it uses less digits than its factorization.

6683212123866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705507 (or 705501 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 6683212123866 in words is "six trillion, six hundred eighty-three billion, two hundred twelve million, one hundred twenty-three thousand, eight hundred sixty-six".