6668143476782 has 8 divisors (see below), whose sum is σ = 10347119188200. Its totient is φ = 3219103747384.

The previous prime is 6668143476733. The next prime is 6668143476791. The reversal of 6668143476782 is 2876743418666.

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

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, 57483995432 + ... + 57483995547.

It is an arithmetic number, because the mean of its divisors is an integer number (1293389898525).

Almost surely, 2^{6668143476782} is an apocalyptic number.

6668143476782 is a deficient number, since it is larger than the sum of its proper divisors (3678975711418).

6668143476782 is a wasteful number, since it uses less digits than its factorization.

6668143476782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114967991010.

The product of its digits is 390168576, while the sum is 68.

The spelling of 6668143476782 in words is "six trillion, six hundred sixty-eight billion, one hundred forty-three million, four hundred seventy-six thousand, seven hundred eighty-two".