Small disnub snub prismatosnub pentishecatonicosipentishexacosichoron

The small disnub snub prismatosnub pentishecatonicosipentishexacosichoron, or sidsospas phipix, is a nonconvex uniform polychoron that consists of 600 great icosahedra, 4800 cuboctahedra (some of which lie in the same hyperplanes, forming 2400 compounds of two), 600 rhombidodecadodecahedra, 600 truncated icosahedra, 1200 small ditrigonal dodecicosidodecahedra (forming 600 compounds of two), 3600 pentagrammic prisms, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

One great icosahedron, eight cuboctahedra (eight compounds), five rhombidodecadodecahedra, five truncated icosahedra, five small ditrigonal dodecicosidodecahedra (ten compounds), five pentagrammic prisms, and five truncated tetrahedra (one compound and four single) join at each vertex.

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

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