  The momentum transport in ultraclean bilayer graphene is characterized by the
viscous transport. In quantizing magnetic field the momentum current passes
through the guiding centers of cyclotron orbits. In this study we derive the
quantized Hall viscosity of bilayer graphene that is the next topological
feature after the quantum Hall effect. This can be detected in the non-local
magnetoresistivity measurements that varies with the quantized steps of
magnetoresistivity.
