3366668666866 has 4 divisors (see below), whose sum is σ = 5050003000302. Its totient is φ = 1683334333432.

The previous prime is 3366668666863. The next prime is 3366668666909. The reversal of 3366668666866 is 6686668666633.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3195710399025 + 170958267841 = 1787655^2 + 413471^2 .

It is a super-3 number, since 3×3366668666866³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3366668666792 and 3366668666801.

It is not an unprimeable number, because it can be changed into a prime (3366668666863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841667166715 + ... + 841667166718.

Almost surely, 2^{3366668666866} is an apocalyptic number.

3366668666866 is a deficient number, since it is larger than the sum of its proper divisors (1683334333436).

3366668666866 is a wasteful number, since it uses less digits than its factorization.

3366668666866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683334333435.

The product of its digits is 5804752896, while the sum is 76.

The spelling of 3366668666866 in words is "three trillion, three hundred sixty-six billion, six hundred sixty-eight million, six hundred sixty-six thousand, eight hundred sixty-six".