Great dispinosnub prismatosnub dishexacositrishexacosichoron

The great dispinosnub prismatosnub dishexacositrishexacosichoron, or gednasposdextix, is a nonconvex uniform polychoron that consists of 600 great dodecahedra and 600 icosahedra (falling into pairs in the same hyperplanes, forming 600 compounds of one of each), 4800 cubohemioctahedra (forming 2400 compounds of two), 600 great dodecicosahedra, 600 truncated great icosahedra, 600 quasirhombicosidodecahedra, and 3600 pentagonal prisms.

One great dodecahedron and one icosahedron (two compounds), eight cubohemioctahedra (eight compounds), five great dodecicosahedra, five truncated great icosahedra, five quasirhombicosidodecahedra, and five pentagonal prisms join at each vertex.

It can be obtained as the blend of 5 great dipentary hecatonicosiprismatohecatonicosihexacosichora and 5 great based dipentary hexacositrishecatonicosachora. In the process, some of the cubohemioctahedron cells blend out.

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