966
+966 is the international calling code for Saudi Arabia.
- Even
- Composite
Where 966 fits
Why 966 is special
Saudi Arabia contains Mecca and Medina and administers the Hajj, one of the largest annual gatherings of people anywhere.
Factors & digit properties
- Divisors (16)
- 1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966
- Prime factorisation
- 2 × 3 × 7 × 23
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 966
- Binary
- 1111000110
- Octal
- 1706
- Hexadecimal
- 3c6
- Roman numeral
- CMLXVI
- Scientific notation
- 9.660 × 10^2
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
Saudi Arabia and Kuwait are Gulf neighbours. Saudi Arabia administers the Hajj, among the largest recurring assemblies of people anywhere.
View 965 →Bahrain is connected to Saudi Arabia by a 25 km causeway opened in 1986, and was the first Gulf state where oil was found.
View 973 →Geography
+966 reaches Saudi Arabia, which administers the annual Hajj — among the largest recurring assemblies of people in the world, managed as a logistics operation on a national scale.
DocumentedGeographyGeography: Saudi Arabia
Common questions
Is 966 a prime number?
No, 966 is not prime.
What are the factors of 966?
The factors of 966 are 1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966.
What is 966 in Roman numerals?
966 in Roman numerals is CMLXVI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026