Names of 1664
| Nominal | 1664 |
| Cardinal | one thousand six hundred sixty-four |
| Ordinal | 1,664th |
| This number as US currency | one thousand six hundred sixty-four dollars |
| Is 1664 an odd number? | 1664 is NOT an odd number |
| Is 1664 an even number? | 1664 is an even number |
| Is 1664 a palindrome? | 1664 is NOT a palindrome number |
| Is 1664 a triangle number? | 1664 is NOT a triangle number |
1664 in other Bases
| Base 2 (Binary) | 110100000002 |
| Base 3 (Ternary) | 20211223 |
| Base 4 (Quaternary) | 1220004 |
| Base 5 (Quinary) | 231245 |
| Base 6 (Senary) | 114126 |
| Base 8 (Octal) | 32008 |
| Base 12 (Duodecimal) | B6812 |
| Base 16 (Hexadecimal) | 68016 |
| Base 20 (Vigesimal) | 43420 |
Primes and Factors tests for 1664
| Is 1664 a Prime Number? | 1664 is NOT a prime |
| Is 1664 a perfect number? | 1664 is NOT a perfect number |
| Is 1664 a Mersenne Prime? | 1664 is NOT a Mersenne prime |
| Is 1664 a Fermat Prime? | 1664 is NOT a Fermat prime |
| Is 1664 a Fibonacci Prime? | 1664 is NOT a Fibonacci prime |
| Is 1664 a Partition Prime? | 1664 is NOT a Partition prime |
| Is 1664 a Pell Prime? | 1664 is NOT a Pell prime |
| Prime Factors | Prime factors of 1664 |
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1664 in other Numerals
| 1664 in Roman Numeral | MDCLXIV |
| 1664 in Chinese Numeral | 壹仟陸佰陸拾肆 |
| 1664 in Egyptian Numeral | 𓆼𓍧𓎋𓏽 |
| 1664 in Babylonian Numeral |   |
Roots and stuff for 1664
| Is 1664 a square number? | 1664 is NOT a square number |
| Is 1664 a cube number? | 1664 is NOT a cube number |
| Square root of the number 1664 | 40.792156108742 |
| Cube root of the number 1664 | 11.849984273629 |
Recreational math for 1664
| Number 1664 reversed | 4661 |
| Sum of the digits | 17 |
| No of digits | 4 |