Great diretrosnub prismatosnub dishexacosipentishexacosichoron

The great diretrosnub prismatosnub dishexacosipentishexacosichoron, or gadersposid xopex, is a nonconvex uniform polychoron that consists of 600 great icosahedra (falling into pairs into the same hyperplane, forming 600 small retrosnub disoctahedra), 600 icosahedra and 600 great dodecahedra (also compounding into 600 compounds of one icosahedron and one great dodecahedron), 4800 octahemioctahedra (forming 2400 compounds of two octahemioctahedra), 600 great dodecicosahedra, 600 truncated great icosahedra, 600 quasirhombicosidodecahedra, and 3600 pentagonal prisms.

This polychoron can be obtained as the blend of 5 great dipentary dishecatonicosahexacosihecatonicosachora and 5 great dipentary tetrishecatonicosaprismatohexacosachora. In the process some of the octahemioctahedra blend out fully, while the other cells compound as noted above.