66714224 has 20 divisors (see below), whose sum is σ = 129493200. Its totient is φ = 33296640.

The previous prime is 66714223. The next prime is 66714229. The reversal of 66714224 is 42241766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66714223) 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 3 ways as a sum of consecutive naturals, for example, 6104 + ... + 13064.

It is an arithmetic number, because the mean of its divisors is an integer number (6474660).

Almost surely, 2^66714224 is an apocalyptic number.

It is an amenable number.

66714224 is a deficient number, since it is larger than the sum of its proper divisors (62778976).

66714224 is a wasteful number, since it uses less digits than its factorization.

66714224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7568 (or 7562 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 66714224 is about 8167.8775700913. The cubic root of 66714224 is about 405.5765278897.

The spelling of 66714224 in words is "sixty-six million, seven hundred fourteen thousand, two hundred twenty-four".