Mathematically 66

Sixty Six ( 66 )

• It is the sum of first 11 natural numbers.
1 + 2 +….+ 11 = 66

• It is a triangular number.

• There are 66 blocks in the given skeleton tower. This tower is six blocks high and has been built with 66 blocks.

(Courtesy :- Richard Philips :- Number)

• It is a Palindrome number.

• It is a Hexagonal number.

• It can be written as the product of three primes.
66 = 2 x 3 x 11

• The atomic number of Dysprosium is 66.

• 66 has seven divisors including itself. If you sum up all these divisors then you get a square number.

1 + 2 + 3 + 6 + 11 + 22 + 33 + 66 = 144 = 12^2

Dr Rajesh Kumar Thakur
rkthakur1974@gmail.com