4066662646686 has 8 divisors (see below), whose sum is σ = 8133325293384. Its totient is φ = 1355554215560.

The previous prime is 4066662646681. The next prime is 4066662646693. The reversal of 4066662646686 is 6866462666604.

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

4066662646686 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066662646681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338888553885 + ... + 338888553896.

It is an arithmetic number, because the mean of its divisors is an integer number (1016665661673).

Almost surely, 2^{4066662646686} is an apocalyptic number.

4066662646686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4066662646686 is a wasteful number, since it uses less digits than its factorization.

4066662646686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677777107786.

The product of its (nonzero) digits is 429981696, while the sum is 66.

The spelling of 4066662646686 in words is "four trillion, sixty-six billion, six hundred sixty-two million, six hundred forty-six thousand, six hundred eighty-six".