Hexadecahemihexadecachoron

The hexadecahemihexadecachoron, or huhoh, is a uniform polychoron. It has 16 tetrahemihexahedra and 8 central cubohemioctahedra, with 4 tetrahemihexahedra and 2 cubohemioctahedra at each vertex.

As well as being isogonal, it is also isotoxal.