66721742137120001

Names of 66721742137120001

• Cardinal: 66721742137120001 can be written as Sixty-six quadrillion, seven hundred twenty-one trillion, seven hundred forty-two billion, one hundred thirty-seven million, one hundred twenty thousand and one.

Scientific notation

• Scientific notation: 6.6721742137120001 × 10¹⁶

Factors of 66721742137120001

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 470562295

Divisors of 66721742137120001

• Number of divisors d(n): 8
• Complete list of divisors:
  1 1093 129763 141830959 470431439 514181562827 61044594818957 66721742137120001
• Sum of all divisors σ(n): 66783301525895040
• Sum of proper divisors (its aliquot sum) s(n): 61559388775039
• 66721742137120001 is a deficient number, because the sum of its proper divisors (61559388775039) is less than itself. Its deficiency is 66660182748344962

Bases of 66721742137120001

• Binary: 11101101000010110001001000101010111000001101010100000001₂
• Hexadecimal: 0xED0B122AE0D501
• Base-36: I8YVT6S3YF5

Squares and roots of 66721742137120001

• 66721742137120001 squared (66721742137120001²) is 4451790873812334678325378674240001
• 66721742137120001 cubed (66721742137120001³) is 297031242730890719893817112859253994938909611360001
• The square root of 66721742137120001 is 258305520.9187755649
• The cube root of 66721742137120001 is 405591.7623491165

Scales and comparisons

• 66,721,742,137,120,001 seconds is equal to 2,121,545,016 years, 3 weeks, 1 day, 7 hours, 6 minutes, 41 seconds.
• To count from 1 to 66,721,742,137,120,001 would take you about six billion, three hundred sixty-four million, six hundred thirty-five thousand and forty-eight 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 66721742137120001 cubic inches would be around 33799.3 feet tall.

Recreational maths with 66721742137120001

• 66721742137120001 backwards is 10002173124712766
• The number of decimal digits it has is: 17
• The sum of 66721742137120001's digits is 50
• More coming soon!