66744272714 has 16 divisors (see below), whose sum is σ = 115017808896. Its totient is φ = 28454924400.

The previous prime is 66744272663. The next prime is 66744272719. The reversal of 66744272714 is 41727244766.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66744272719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12477557 + ... + 12482904.

It is an arithmetic number, because the mean of its divisors is an integer number (7188613056).

Almost surely, 2^66744272714 is an apocalyptic number.

66744272714 is a deficient number, since it is larger than the sum of its proper divisors (48273536182).

66744272714 is a wasteful number, since it uses less digits than its factorization.

66744272714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24960661.

The product of its digits is 3161088, while the sum is 50.

The spelling of 66744272714 in words is "sixty-six billion, seven hundred forty-four million, two hundred seventy-two thousand, seven hundred fourteen".