666216720841

Names of 666216720841

• Cardinal: 666216720841 can be written as Six hundred sixty-six billion, two hundred sixteen million, seven hundred twenty thousand, eight hundred forty-one.

Scientific notation

• Scientific notation: 6.66216720841 × 10¹¹

Factors of 666216720841

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 43

Divisors of 666216720841

• Number of divisors d(n): 63
• Complete list of divisors:
  1 7 17 19 49 119 133 289 323 361 833 931 2023 2261 2527 5491 6137 6859 14161 15827 17689 38437 42959 48013 104329 116603 130321 269059 300713 336091 730303 816221 912247 1982251 2215457 2476099 5112121 5713547 6385729 13875757 15508199 17332693 37662769 42093683 47045881 97130299 108557393 121328851 263639383 294655781 329321167 715592611 799779977 1845475681 2062590467 2305248169 5009148277 5598459839 13596259609 35064037939 39189218873 95173817263 666216720841
• Sum of all divisors σ(n): 868992307959
• Sum of proper divisors (its aliquot sum) s(n): 202775587118
• 666216720841 is a deficient number, because the sum of its proper divisors (202775587118) is less than itself. Its deficiency is 463441133723

Bases of 666216720841

• Binary: 1001101100011101100111000110100111001001₂
• Hexadecimal: 0x9B1D9C69C9
• Base-36: 8I208FRD

Squares and roots of 666216720841

• 666216720841 squared (666216720841²) is 443844719128134923747281
• 666216720841 cubed (666216720841³) is 295696773340140717403125127609783321
• 666216720841 is a perfect square number. Its square root is 816221
• The cube root of 666216720841 is 8733.8388856361
• Being both a perfect square and a perfect cube, 666216720841 is also a perfect sixth number.

Scales and comparisons

• 666,216,720,841 seconds is equal to 21,183 years, 32 weeks, 5 days, 16 hours, 14 minutes, 1 second.
• To count from 1 to 666,216,720,841 would take you about forty-two thousand, three hundred sixty-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 666216720841 cubic inches would be around 727.8 feet tall.

Recreational maths with 666216720841

• 666216720841 backwards is 148027612666
• 666216720841 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 666216720841's digits is 49
• More coming soon!