8550666679 has 2 divisors, whose sum is σ = 8550666680. Its totient is φ = 8550666678.

The previous prime is 8550666637. The next prime is 8550666743. The reversal of 8550666679 is 9766660558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8550666679 - 2²³ = 8542278071 is a prime.

It is a super-2 number, since 2×8550666679² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8550666079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4275333339 + 4275333340.

It is an arithmetic number, because the mean of its divisors is an integer number (4275333340).

Almost surely, 2^8550666679 is an apocalyptic number.

8550666679 is a deficient number, since it is larger than the sum of its proper divisors (1).

8550666679 is an equidigital number, since it uses as much as digits as its factorization.

8550666679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The square root of 8550666679 is about 92469.8149614240. The cubic root of 8550666679 is about 2044.8744991858.

The spelling of 8550666679 in words is "eight billion, five hundred fifty million, six hundred sixty-six thousand, six hundred seventy-nine".