66 Number Properties & Facts

Sixty-Six

Primality

Prime Factorization of 66
21 × 31 × 111
Number of Divisors in 66
8
1, 2, 3, 6, 11, 22, 33, 66
1, 2, 3, 6, 11, 22, 33, 66
Is 66 Prime?
No

Trigonometry

Sine of 66
-0.026551154023967
Cosecant: -37.663146358811
Cosine of 66
-0.99964745596635
Secant: -1.0003526683648
Tangent of 66
0.026560517776039
Cotangent: 37.649868441274

Functions

Square of 66
4356
66 × 66 = 4356
Square Root of 66
8.124038404636
8.1240384046362 = 66
Natural Logarithm (ln) of 66
4.1896547420264
e4.1896547420264 = 66
Decimal Logarithm (log) of 66
1.8195439355419
101.8195439355419 = 66

Numeric Bases

66 in Binary
0b1000010
Base 2
66 in Octal
0102
Base 8
66 in Hexadecimal
0x42
Base 16

Sequences

Is 66 a Fibonacci Number?
No
Is 66 a Bell Number?
No
Is 66 a Catalan Number?
No
Is 66 a Factorial?
No
Is 66 a Perfect Number?
No

Translations

How do you say 66 in different languages?
Englishsixty-six
españolsesenta y seis
françaissoixante-six
Deutschsechs­und­sechzig
Nederlandszes­en­zestig
русскийшестьдесят шесть
українськашістдесят шість
Tiếng Việtsáu mươi sáu
العربيةستة و ستون
עבריתשישים ושש
हिन्दीछियासठ
中文六十六
日本語六十六
한국어육십육
češtinašedesát šest
hrvatskišezdeset i šest
slovenčinašesťdesiat­šesť
polskisześćdziesiąt sześć
Türkçealtmış altı
portuguêssessenta e seis
italianosessanta­sei
svenskasextio­sex
suomikuusi­kymmentä­kuusi
norskseksti­seks
Filipinoanim na pû’t anim
Melayuenam puluh enam
မြန်မာခြောက်ဆယ်ခြောက်
Indonesiaenam puluh enam
Kiswahilisitini na sita

Miscellaneous

Number of Significant Figures in 66
2
Hamming Weight of 66
2
Is 66 a Hamming (Regular) Number?
No
Is 66 a Humble Number?
No
Is 66 a Polygonal (s < 13) Number?
Triangular (11), Hexagonal (6)
Is 66 a Happy Number?
No
Is 66 a Self Describing Number?
No
Is 66 a Palindrome?
Yes
Is 66 a Münchhausen Number?
No
Is 66 an Eban Number?
Yes
Is 66 a Pernicious Number?
Yes
Is 66 a Attractive Number?
Yes
Is 66 a Perfect Square?
No
Is 66 a Perfect Power?
No