Il numero romano MMMCMLXV nel sistema decimale vale: 3965.
MMMCMLXV in latino si scrive tria milia nongenti sexaginta quinque,
mentre in italiano tremilanovecentosessantacinque.
MMMCMXLVI, MMMCMXLVII, MMMCMXLVIII, MMMCMXLIX, MMMCML, MMMCMLI, MMMCMLII, MMMCMLIII, MMMCMLIV, MMMCMLV, MMMCMLVI, MMMCMLVII, MMMCMLVIII, MMMCMLIX, MMMCMLX, MMMCMLXI, MMMCMLXII, MMMCMLXIII, MMMCMLXIV, MMMCMLXVI, MMMCMLXVII, MMMCMLXVIII, MMMCMLXIX, MMMCMLXX, MMMCMLXXI, MMMCMLXXII, MMMCMLXXIII, MMMCMLXXIV, MMMCMLXXV, MMMCMLXXVI, MMMCMLXXVII, MMMCMLXXVIII, MMMCMLXXIX, MMMCMLXXX, MMMCMLXXXI, MMMCMLXXXII, MMMCMLXXXIII, MMMCMLXXXIV