6683773866 has 64 divisors (see below), whose sum is σ = 16766023680. Its totient is φ = 1725629760.

The previous prime is 6683773847. The next prime is 6683773871.

6683773866 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33840 + ... + 120468.

It is an arithmetic number, because the mean of its divisors is an integer number (261969120).

Almost surely, 2^6683773866 is an apocalyptic number.

6683773866 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6683773866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8383011840).

6683773866 is an abundant number, since it is smaller than the sum of its proper divisors (10082249814).

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

6683773866 is a wasteful number, since it uses less digits than its factorization.

6683773866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86819.

The product of its digits is 36578304, while the sum is 60.

The square root of 6683773866 is about 81754.3507466116. The cubic root of 6683773866 is about 1883.6805318139.

The spelling of 6683773866 in words is "six billion, six hundred eighty-three million, seven hundred seventy-three thousand, eight hundred sixty-six".