Great disnub snub prismatodisnub pentishecatonicosidishexacosidishexacosichoron

The great disnub snub prismatodisnub pentishecatonicosidishexacosidishexacosichoron, or gidsospid sphidixdox, is a nonconvex uniform polychoron that consists of 600 icosahedra and 600 great dodecahedra (falling into pairs in the same hyperplanes, forming 600 compounds of one of each), 4800 cuboctahedra (forming 2400 compounds of two), 600 great icosicosidodecahedra, 600 great rhombidodecahedra, 6000 triangular prisms, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

One icosahedron and one great dodecahedron (two compounds), eight cuboctahedra (eight compounds), five great icosicosidodecahedra, five great rhombidodecahedra, five triangular prisms, and five truncated tetrahedra (one compound and four single) join at each vertex.

It can be obtained as the blend of 5 great dipentary prismatohexacosihecatonicosachora and 5 great dipentary dishecatonicosidishexacosihecatonicosachora. In the process, some of the cuboctahedron cells blend out.

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