Small prismatosnub disnub hexishexacosichoron

The small prismatosnub disnub hexishexacosichoron, or sposdoshax, is a nonconvex uniform polychoron that consists of 600 great icosahedra, 600 icosahedra, 4800 cuboctahedra (some of which lie in the same hyperplanes, forming 2400 compounds of two), 600 truncated icosahedra, 600 rhombicosahedra, 600 small dodecicosidodecahedra, 600 small ditrigonal dodecicosidodecahedra, and 3600 pentagrammic prisms.

One great icosahedron, one icosahedron, eight cuboctahedra (eight compounds), five truncated icosahedra, five rhombicosahedra, five small dodecicosidodecahedra, five small ditrigonal dodecicosidodecahedra, and five pentagrammic prisms join at each vertex.

It can be obtained as the blend of 5 small dipentary hexacosiprismatodishecatonicosachora and 5 small dipentary trishecatonicosihexacosihecatonicosachora.

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