Tu-119
The next stage in the development of a nuclear-powered bomber would have been the Tupolev Tu-119, a modified Tu-95, which would have been powered by both kerosene fuelled and nuclear fuelled turboprop engines; two Kuznetsov NK-14A nuclear fuelled engines inboard fed with heat from a fuselage mounted reactor and two Kuznetsov NK-12 turboprops outboard. The Tu-119 was never completed due to the nuclear-powered bomber project being cancelled, on grounds of cost and the dire environmental impact of possible mishaps and accidents.
Read more about this topic: Tupolev Tu-95LAL