Great dispinosnub prismatosnub trishexacosidishexacosichoron

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

One small stellated dodecahedron and one great icosahedron (two compounds), eight cubohemioctahedra (eight compounds), five truncated great icosahedra, five great rhombidodecahedra, five great icosicosidodecahedra, and five pentagonal prisms join at each vertex.

It can be obtained as the blend of 5 great spinocapped dipentary hexacositrishecatonicosachora 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.