66224741 has 8 divisors (see below), whose sum is σ = 76495104. Its totient is φ = 56662720.

The previous prime is 66224731. The next prime is 66224759. The reversal of 66224741 is 14742266.

66224741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66224741 - 2⁶ = 66224677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66224698 and 66224707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66224701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176885 + ... + 177258.

It is an arithmetic number, because the mean of its divisors is an integer number (9561888).

Almost surely, 2^66224741 is an apocalyptic number.

It is an amenable number.

66224741 is a deficient number, since it is larger than the sum of its proper divisors (10270363).

66224741 is a wasteful number, since it uses less digits than its factorization.

66224741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354171.

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

The square root of 66224741 is about 8137.8585020876. The cubic root of 66224741 is about 404.5821855850.

The spelling of 66224741 in words is "sixty-six million, two hundred twenty-four thousand, seven hundred forty-one".