6681100199 has 2 divisors, whose sum is σ = 6681100200. Its totient is φ = 6681100198.

The previous prime is 6681100157. The next prime is 6681100219. The reversal of 6681100199 is 9910011866.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6681100199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6681100109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340550099 + 3340550100.

It is an arithmetic number, because the mean of its divisors is an integer number (3340550100).

Almost surely, 2^6681100199 is an apocalyptic number.

6681100199 is a deficient number, since it is larger than the sum of its proper divisors (1).

6681100199 is an equidigital number, since it uses as much as digits as its factorization.

6681100199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 6681100199 is about 81737.9972778878. The cubic root of 6681100199 is about 1883.4293261189.

The spelling of 6681100199 in words is "six billion, six hundred eighty-one million, one hundred thousand, one hundred ninety-nine".