6671881766 has 8 divisors (see below), whose sum is σ = 10917624744. Its totient is φ = 3032673520.

The previous prime is 6671881751. The next prime is 6671881789.

6671881766 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151633655 + ... + 151633698.

It is an arithmetic number, because the mean of its divisors is an integer number (1364703093).

Almost surely, 2^6671881766 is an apocalyptic number.

6671881766 is a deficient number, since it is larger than the sum of its proper divisors (4245742978).

6671881766 is a wasteful number, since it uses less digits than its factorization.

6671881766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303267366.

The product of its digits is 4064256, while the sum is 56.

The square root of 6671881766 is about 81681.5876804559. The cubic root of 6671881766 is about 1882.5626894863.

The spelling of 6671881766 in words is "six billion, six hundred seventy-one million, eight hundred eighty-one thousand, seven hundred sixty-six".