What is ${\left( 4^{4} \right)^{-1}}$

${4^{ 3 }}$ ${\frac{1}{4}^{ 3 }}$ ${4^{ \frac{1}{4} }}$ ${\frac{1}{4}^{ -4 }}$ ${\frac{1}{4}^{ \frac{1}{4} }}$ ${4^{ -4 }}$