Great dispinosnub prismatosnub hexacosidishexacosichoron

The great dispinosnub prismatosnub hexacosidishexacosichoron, or gedansposixdox, is a nonconvex uniform polychoron that consists of 600 great icosahedra, 4800 cubohemioctahedra (falling into pairs in the same hyperplanes, forming 2400 compounds of two), 600 great icosicosidodecahedra, 600 rhombicosahedra, and 3600 pentagonal prisms.

One great icosahedron, eight cubohemioctahedra (eight compounds), five great icosicosidodecahedra, five rhombicosahedra, and five pentagonal prisms join at each vertex.

It can be obtained as the blend of 5 great dipentary hexacosihecatonicosachora and 5 great dipentary prismatohecatonicosihexacosihecatonicosachora. 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.