Great disnub snub prismatosnub pentishecatonicosidishexacositrishexacosichoron

The great disnub snub prismatosnub pentishecatonicosidishexacositrishexacosichoron, or gidsospas phidextix, is a nonconvex uniform polychoron that consists of 600 icosahedra and 600 great dodecahedra (falling into pairs in the same hyperplanes, forming 600 compounds of one of each), 4800 cuboctahedra (forming 2400 compounds of two), 600 great rhombidodecahedra, 600 great ditrigonal dodecicosidodecahedra and 600 great icosicosidodecahedra (forming 600 compounds of one of each), 3600 pentagonal prisms, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

One icosahedron and one great dodecahedron (two compounds), eight cuboctahedra (eight compounds), five great rhombidodecahedra, five great ditrigonal dodecicosidodecahedra and five great icosicosidodecahedra (ten compounds), 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 dishecatonicosidishexacosihecatonicosachora. 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.