8000008666669 has 12 divisors (see below), whose sum is σ = 8267072534112. Its totient is φ = 7741312258680.

The previous prime is 8000008666633. The next prime is 8000008666759. The reversal of 8000008666669 is 9666668000008.

It is not a de Polignac number, because 8000008666669 - 2²⁵ = 7999975112237 is a prime.

It is a super-2 number, since 2×8000008666669² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8000005666669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11666674 + ... + 12333340.

It is an arithmetic number, because the mean of its divisors is an integer number (688922711176).

Almost surely, 2^{8000008666669} is an apocalyptic number.

It is an amenable number.

8000008666669 is a deficient number, since it is larger than the sum of its proper divisors (267063867443).

8000008666669 is a wasteful number, since it uses less digits than its factorization.

8000008666669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679216 (or 679185 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 8000008666669 in words is "eight trillion, eight million, six hundred sixty-six thousand, six hundred sixty-nine".