Great disnub snub prismatosnub pentishecatonicosihexishexacosichoron

The great disnub snub prismatosnub pentishecatonicosihexishexacosichoron, or gidsospas phihix, is a nonconvex uniform polychoron that consists of 600 great icosahedra, 600 icosahedra and 600 great dodecahedra (some of which lie in the same hyperplanes, forming 600 compounds of one of each), 4800 cuboctahedra (forming 2400 compounds of two), 600 rhombidodecadodecahedra, 600 truncated great icosahedra, 600 great ditrigonal dodecicosidodecahedra, 3600 pentagonal prisms, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

One great icosahedron, one icosahedron and one great dodecahedron (two compounds), eight cuboctahedra (eight compounds), five rhombidodecadodecahedra, five truncated great icosahedra, five great ditrigonal dodecicosidodecahedra, five pentagonal prisms, and five truncated tetrahedra (one compound and four single) join at each vertex.

It can be obtained as the blend of 5 great dipentary hexacosiprismatodishecatonicosachora and 5 great dipentary hexacosihecatonicosihexacositrishecatonicosachora. In the process, some of the cuboctahedron cells blend out.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the great diretrosnub disnub decahecatonicosadishexacosichoron.