Great prismatohecatonicosidishexacosichoron

The great prismatohecatonicosidishexacosichoron, or giphiddix, is a nonconvex uniform polychoron that consists of 720 pentagonal prisms, 600 truncated tetrahedra, 600 truncated octahedra, and 120 great icosicosidodecahedra. 1 pentagonal prism, 1 truncated tetrahedron, 1 great icosicosidodecahedron, and 2 truncated octahedra join at each vertex.

It is in the same regiment as the great hexacosiprismatodishecatonicosachoron.