Small hexacositrishecatonicosachoron

The small hexacositrishecatonicosachoron, or sixathi, is a nonconvex uniform polychoron that consists of 600 truncated tetrahedra, 120 quasitruncated small stellated dodecahedra, 120 small rhombicosidodecahedra, and 120 great quasitruncated icosidodecahedra. 1 truncated tetrahedron, 1 quasitruncated small stellated dodecahedron, 1 small rhombicosidodecahedron, and 2 great quasitruncated icosidodecahedra join at each vertex.