6668869680601 has 4 divisors (see below), whose sum is σ = 6898830704100. Its totient is φ = 6438908657104.

The previous prime is 6668869680581. The next prime is 6668869680607. The reversal of 6668869680601 is 1060869688666.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3776710277376 + 2892159403225 = 1943376^2 + 1700635^2 .

It is a cyclic number.

It is not a de Polignac number, because 6668869680601 - 2²⁹ = 6668332809689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6668869680607) 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, 114980511706 + ... + 114980511763.

It is an arithmetic number, because the mean of its divisors is an integer number (1724707676025).

Almost surely, 2^{6668869680601} is an apocalyptic number.

It is an amenable number.

6668869680601 is a deficient number, since it is larger than the sum of its proper divisors (229961023499).

6668869680601 is a wasteful number, since it uses less digits than its factorization.

6668869680601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229961023498.

The product of its (nonzero) digits is 214990848, while the sum is 70.

The spelling of 6668869680601 in words is "six trillion, six hundred sixty-eight billion, eight hundred sixty-nine million, six hundred eighty thousand, six hundred one".