666 (number) on 1/149 in base 10 has a magic total of 666. The prime factorization of 666 is 2 • 3 • 37. Also, 666 is the sum of squares of first seven primes: formula_2 The Roman numeral for 666, DCLXVI, has exactly one occurrence of all symbols whose value is less than 1000 in decreasing order (D = 500, C = 100, L = 50, X = 10, V = 5, I = 1). In the Textus Receptus manuscripts of the New Testament, the Book of Revelation () cryptically asserts 666 to be "man's number" or "the number of a
Macedonian numerals (and) + the basic number. The numbers 100, 200 and 300 are formed by adding the word -сто (-sto) to the basic number. The numbers over 300 are formed by adding the suffix -стотини (-стотини) to the basic number. The decagonal numerals are formed by adding the word -илјада (-iljada) to the basic numeral. The numbers between the decagonal numbers are formed on the same way as the numbers between the decimal numbers. The millions and the numbers between the millions are formed on the same way as the decagonal numerals. The further numerals are милијарда / "milijarda" (billion), трилион