  We study the dissipative and Hall viscosity of a disordered noninteracting 2D
electrons, both analytically and numerically. Analytically, we employ the
self-consistent Born approximation, explicitly taking into account the
modification of the single-particle density of states and the elastic transport
time due to the Landau quantization. The reported results interpolate smoothly
between the limiting cases of weak (strong) magnetic field and strong (weak)
disorder. In the regime of weak magnetic field, our results describes the
quantum (de Haas-van Alphen type) oscillations of the dissipative and Hall
viscosity. For strong magnetic field, we computed the dependence of the
dissipative and Hall viscosity on disorder broadening of a Landau level. In
particular, for the Hall viscosity the effect of the disorder broadening is
weak. This theoretical conclusion is in agreement with our numerical results
for a few lowest Landau levels, which show that Hall viscosity is robust to
disorder.
