Hexacositrishecatonicosachoron

The hexacositrishecatonicosachoron, or xithi, is a nonconvex uniform polychoron that consists of 600 truncated octahedra, 120 quasitruncated dodecadodecahedra, 120 great rhombicosidodecahedra, and 120 great quasitruncated icosidodecahedra. 1 of each type of cell join at each vertex.