8666066447783 has 4 divisors (see below), whose sum is σ = 8667583887648. Its totient is φ = 8664549007920.

The previous prime is 8666066447777. The next prime is 8666066447839. The reversal of 8666066447783 is 3877446606668.

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

It is a cyclic number.

It is not a de Polignac number, because 8666066447783 - 2¹⁰ = 8666066446759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666066447743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758711366 + ... + 758722787.

It is an arithmetic number, because the mean of its divisors is an integer number (2166895971912).

Almost surely, 2^{8666066447783} is an apocalyptic number.

8666066447783 is a deficient number, since it is larger than the sum of its proper divisors (1517439865).

8666066447783 is a wasteful number, since it uses less digits than its factorization.

8666066447783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517439864.

The product of its (nonzero) digits is 1170505728, while the sum is 71.

The spelling of 8666066447783 in words is "eight trillion, six hundred sixty-six billion, sixty-six million, four hundred forty-seven thousand, seven hundred eighty-three".