66244448 has 24 divisors (see below), whose sum is σ = 130741128. Its totient is φ = 33040384.

The previous prime is 66244447. The next prime is 66244459. The reversal of 66244448 is 84444266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66244447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11840 + ... + 16512.

It is an arithmetic number, because the mean of its divisors is an integer number (5447547).

Almost surely, 2^66244448 is an apocalyptic number.

It is an amenable number.

66244448 is a deficient number, since it is larger than the sum of its proper divisors (64496680).

66244448 is a wasteful number, since it uses less digits than its factorization.

66244448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126 (or 5118 counting only the distinct ones).

The product of its digits is 147456, while the sum is 38.

The square root of 66244448 is about 8139.0692342552. The cubic root of 66244448 is about 404.6223131379.

The spelling of 66244448 in words is "sixty-six million, two hundred forty-four thousand, four hundred forty-eight".