Small disnub prismatosnubdisnub trishexacosichoron

The small disnub prismatosnubdisnub trishexacosichoron, or sidsposidstix, is a nonconvex uniform polychoron that consists of 1200 great icosahedra (some of which lie in the same hyperplanes, forming 600 small retrosnub disoctahedra), 4800 cuboctahedra (forming 2400 compounds of two), 600 small ditrigonal dodecicosidodecahedra, 6000 triangular prisms, and 3600 pentagrammic prisms.

Two great icosahedra (two compounds), eight cuboctahedra (eight compounds), five small ditrigonal dodecicosidodecahedra, five triangular prisms, and five pentagrammic prisms join at each vertex.

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

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