Great dipentary hecatonicosidishexacosichoron

The great dipentary hecatonicosidishexacosichoron, or gad phiddix, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 600 truncated tetrahedra, and 600 octahemioctahedra. One great icosahedron, five truncated tetrahedra, and five octahemioctahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the great dipentary trishecatonicosachoron.

Related polychora
This polychoron can be formed as the blend of 25 prismatorhombiretrosnub icositetrachora.

10 copies of this polychoron can be blended to form the great diretrosnub disnub decahecatonicosadishexacosichoron.