Names of 166
| Nominal | 166 |
| Cardinal | one hundred sixty-six |
| Ordinal | 166th |
| This number as US currency | one hundred sixty-six dollars |
| Is 166 an odd number? | 166 is NOT an odd number |
| Is 166 an even number? | 166 is an even number |
| Is 166 a palindrome? | 166 is NOT a palindrome number |
| Is 166 a triangle number? | 166 is NOT a triangle number |
166 in other Bases
| Base 2 (Binary) | 101001102 |
| Base 3 (Ternary) | 200113 |
| Base 4 (Quaternary) | 22124 |
| Base 5 (Quinary) | 11315 |
| Base 6 (Senary) | 4346 |
| Base 8 (Octal) | 2468 |
| Base 12 (Duodecimal) | 11A12 |
| Base 16 (Hexadecimal) | A616 |
| Base 20 (Vigesimal) | 8620 |
Primes and Factors tests for 166
| Is 166 a Prime Number? | 166 is NOT a prime |
| Is 166 a perfect number? | 166 is NOT a perfect number |
| Is 166 a Mersenne Prime? | 166 is NOT a Mersenne prime |
| Is 166 a Fermat Prime? | 166 is NOT a Fermat prime |
| Is 166 a Fibonacci Prime? | 166 is NOT a Fibonacci prime |
| Is 166 a Partition Prime? | 166 is NOT a Partition prime |
| Is 166 a Pell Prime? | 166 is NOT a Pell prime |
| Prime Factors | Prime factors of 166 |
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166 in other Numerals
| 166 in Roman Numeral | CLXVI |
| 166 in Chinese Numeral | 壹佰陸拾陸 |
| 166 in Egyptian Numeral | 𓍢𓎋𓏿 |
| 166 in Babylonian Numeral |   |
Roots and stuff for 166
| Is 166 a square number? | 166 is NOT a square number |
| Is 166 a cube number? | 166 is NOT a cube number |
| Square root of the number 166 | 12.884098726725 |
| Cube root of the number 166 | 5.495864660095 |
Recreational math for 166
| Number 166 reversed | 661 |
| Sum of the digits | 13 |
| No of digits | 3 |