Is 66 an abundant number and what is its abundance?

Is 66 an abundant number?

Here we will explain and calculate if 66 is an abundant number and its abundance if applicable.

66 is an abundant number if the sum of its proper divisors is greater than 66.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 6 + 11 + 22 + 33 = 78.

78 is greater than 66. Therefore, 66 is an abundant number.

The abundance of 66 is the sum of its proper divisors minus 66. Thus, the abundance of 66 is 78 - 66 = 12

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