66484444 has 24 divisors (see below), whose sum is σ = 130747680. Its totient is φ = 29350464.

The previous prime is 66484427. The next prime is 66484459. The reversal of 66484444 is 44448466.

It is a junction number, because it is equal to n+sod(n) for n = 66484397 and 66484406.

It is a congruent number.

It is an unprimeable number.

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, 26599 + ... + 28990.

It is an arithmetic number, because the mean of its divisors is an integer number (5447820).

Almost surely, 2^66484444 is an apocalyptic number.

It is an amenable number.

66484444 is a deficient number, since it is larger than the sum of its proper divisors (64263236).

66484444 is a wasteful number, since it uses less digits than its factorization.

66484444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55629 (or 55627 counting only the distinct ones).

The product of its digits is 294912, while the sum is 40.

The square root of 66484444 is about 8153.7993598077. The cubic root of 66484444 is about 405.1103575703.

The spelling of 66484444 in words is "sixty-six million, four hundred eighty-four thousand, four hundred forty-four".