8668668668 has 12 divisors (see below), whose sum is σ = 16549276632. Its totient is φ = 3940303920.

The previous prime is 8668668649. The next prime is 8668668689.

8668668668 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8668668598 and 8668668607.

It is a congruent number.

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, 98507555 + ... + 98507642.

It is an arithmetic number, because the mean of its divisors is an integer number (1379106386).

Almost surely, 2^8668668668 is an apocalyptic number.

It is an amenable number.

8668668668 is a deficient number, since it is larger than the sum of its proper divisors (7880607964).

8668668668 is a wasteful number, since it uses less digits than its factorization.

8668668668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197015212 (or 197015210 counting only the distinct ones).

The product of its digits is 191102976, while the sum is 68.

The square root of 8668668668 is about 93105.6854762372. The cubic root of 8668668668 is about 2054.2382013417.

The spelling of 8668668668 in words is "eight billion, six hundred sixty-eight million, six hundred sixty-eight thousand, six hundred sixty-eight".