198. \((m^{-6})^{-2}\cdot m^{-14}\), \(m=\frac{1}{4}\).

\[(m^{-6})^{-2}\cdot m^{-14}=m^{12}\cdot m^{-14}=m^{-2}.\]

\[m^{-2}=\left(\frac{1}{4}\right)^{-2}=4^2=16.\]

Ответ: 16.