Great rhombiprismic hexacosihecatonicosachoron

The great rhombiprismic hexacosihecatonicosachoron, or girpixhi, is a nonconvex uniform polychoron that consists of 600 cubohemioctahedra, 720 decagrammic prisms, and 120 great quasitruncated icosidodecahedra. One cubohemioctahedron, two decagrammic prisms, and two great quasitruncated icosidodecahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the quasiprismatorhombated grand hexacosichoron.