My prefix means to work together, and when written in full words, it means something almost rectangular.
My infix is neves semit thgie semit enin in Italy, and when written in full words, it means something usually rectangular.
My suffix is indivisible, and when written in full words, it can end its own suffix.
My whole, despite not being Phileas Fogg, unfortunately managed to travel the whole world in less than 80 days (but it's rarely written in full words).
(Note: The question can be a bit inappropriate, apologies to those who feels offended.)