Small disnub snub hexishexacosipentishecatonicosachoron

The small disnub snub hexishexacosipentishecatonicosachoron, or sidsoshaxphi, 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 of them), 600 small rhombidodecahedra, 600 rhombidodecadodecahedra, 600 small ditrigonal dodecicosidodecahedra, 600 truncated icosahedra, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

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

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

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