Names of 2666
| Nominal | 2666 |
| Cardinal | two thousand six hundred sixty-six |
| Ordinal | 2,666th |
| This number as US currency | two thousand six hundred sixty-six dollars |
| Is 2666 an odd number? | 2666 is NOT an odd number |
| Is 2666 an even number? | 2666 is an even number |
| Is 2666 a palindrome? | 2666 is NOT a palindrome number |
| Is 2666 a triangle number? | 2666 is NOT a triangle number |
2666 in other Bases
| Base 2 (Binary) | 1010011010102 |
| Base 3 (Ternary) | 101222023 |
| Base 4 (Quaternary) | 2212224 |
| Base 5 (Quinary) | 411315 |
| Base 6 (Senary) | 202026 |
| Base 8 (Octal) | 51528 |
| Base 12 (Duodecimal) | 166212 |
| Base 16 (Hexadecimal) | A6A16 |
| Base 20 (Vigesimal) | 6D620 |
Primes and Factors tests for 2666
| Is 2666 a Prime Number? | 2666 is NOT a prime |
| Is 2666 a perfect number? | 2666 is NOT a perfect number |
| Is 2666 a Mersenne Prime? | 2666 is NOT a Mersenne prime |
| Is 2666 a Fermat Prime? | 2666 is NOT a Fermat prime |
| Is 2666 a Fibonacci Prime? | 2666 is NOT a Fibonacci prime |
| Is 2666 a Partition Prime? | 2666 is NOT a Partition prime |
| Is 2666 a Pell Prime? | 2666 is NOT a Pell prime |
| Prime Factors | Prime factors of 2666 |
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2666 in other Numerals
| 2666 in Roman Numeral | MMDCLXVI |
| 2666 in Chinese Numeral | 貳仟陸佰陸拾陸 |
| 2666 in Egyptian Numeral | 𓆽𓍧𓎋𓏿 |
| 2666 in Babylonian Numeral |   |
Roots and stuff for 2666
| Is 2666 a square number? | 2666 is NOT a square number |
| Is 2666 a cube number? | 2666 is NOT a cube number |
| Square root of the number 2666 | 51.633322573702 |
| Cube root of the number 2666 | 13.866069788575 |
Recreational math for 2666
| Number 2666 reversed | 6662 |
| Sum of the digits | 20 |
| No of digits | 4 |