8666666668 has 12 divisors (see below), whose sum is σ = 16545454632. Its totient is φ = 3939393920.

The previous prime is 8666666629. The next prime is 8666666677.

8666666668 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8666666668² (a number of 21 digits) contains 22 as substring.

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, 98484805 + ... + 98484892.

It is an arithmetic number, because the mean of its divisors is an integer number (1378787886).

Almost surely, 2^8666666668 is an apocalyptic number.

It is an amenable number.

8666666668 is a deficient number, since it is larger than the sum of its proper divisors (7878787964).

8666666668 is a wasteful number, since it uses less digits than its factorization.

8666666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196969712 (or 196969710 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 64.

The square root of 8666666668 is about 93094.9336322874. The cubic root of 8666666668 is about 2054.0800493550.

The spelling of 8666666668 in words is "eight billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-eight".