Great dispinosnub hexacosi prismatosnub pentishexacosichoron

The great dispinosnub hexacosi prismatosnub pentishexacosichoron, or gedansix paspox, is a nonconvex uniform polychoron that consists of 1200 great icosahedra (falling into pairs in the same hyperplanes, forming 600 small retrosnub disoctahedra), 600 great dodecahedra, 4800 cubohemioctahedra (forming 2400 compounds of two), 1200 great icosicosidodecahedra (forming 600 compounds of two), 600 great rhombidodecahedra, and 3600 pentagonal prisms.

Two great icosahedra (two compounds), one great dodecahedron, eight cubohemioctahedra (eight compounds), ten great icosicosidodecahedra (ten compounds), five great rhombidodecahedra, and five pentagonal prisms join at each vertex.

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