6666673219 has 2 divisors, whose sum is σ = 6666673220. Its totient is φ = 6666673218.

The previous prime is 6666673213. The next prime is 6666673229. The reversal of 6666673219 is 9123766666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6666673219 - 2¹¹ = 6666671171 is a prime.

It is a super-2 number, since 2×6666673219² = 88889063617863643922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6666673213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333336609 + 3333336610.

It is an arithmetic number, because the mean of its divisors is an integer number (3333336610).

Almost surely, 2^6666673219 is an apocalyptic number.

6666673219 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666673219 is an equidigital number, since it uses as much as digits as its factorization.

6666673219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 52.

The square root of 6666673219 is about 81649.6982174460. The cubic root of 6666673219 is about 1882.0726743600.

The spelling of 6666673219 in words is "six billion, six hundred sixty-six million, six hundred seventy-three thousand, two hundred nineteen".