Il numero romano MMMCDLVI nel sistema decimale vale: 3456.
MMMCDLVI in latino si scrive tria milia quadringenti quinquaginta sex,
mentre in italiano tremilaquattrocentocinquantasei.
MMMCDXXXVII, MMMCDXXXVIII, MMMCDXXXIX, MMMCDXL, MMMCDXLI, MMMCDXLII, MMMCDXLIII, MMMCDXLIV, MMMCDXLV, MMMCDXLVI, MMMCDXLVII, MMMCDXLVIII, MMMCDXLIX, MMMCDL, MMMCDLI, MMMCDLII, MMMCDLIII, MMMCDLIV, MMMCDLV, MMMCDLVII, MMMCDLVIII, MMMCDLIX, MMMCDLX, MMMCDLXI, MMMCDLXII, MMMCDLXIII, MMMCDLXIV, MMMCDLXV, MMMCDLXVI, MMMCDLXVII, MMMCDLXVIII, MMMCDLXIX, MMMCDLXX, MMMCDLXXI, MMMCDLXXII, MMMCDLXXIII, MMMCDLXXIV, MMMCDLXXV