66382444 has 24 divisors (see below), whose sum is σ = 120699936. Its totient is φ = 31920000.

The previous prime is 66382429. The next prime is 66382451. The reversal of 66382444 is 44428366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8794 + ... + 14494.

It is an arithmetic number, because the mean of its divisors is an integer number (5029164).

Almost surely, 2^66382444 is an apocalyptic number.

It is an amenable number.

66382444 is a deficient number, since it is larger than the sum of its proper divisors (54317492).

66382444 is a wasteful number, since it uses less digits than its factorization.

66382444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5817 (or 5815 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

The square root of 66382444 is about 8147.5422060889. The cubic root of 66382444 is about 404.9030789770.

The spelling of 66382444 in words is "sixty-six million, three hundred eighty-two thousand, four hundred forty-four".