66441414466 has 48 divisors (see below), whose sum is σ = 122819587200. Its totient is φ = 26785385088.

The previous prime is 66441414451. The next prime is 66441414503.

It is a happy number.

66441414466 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3387195 + ... + 3406753.

It is an arithmetic number, because the mean of its divisors is an integer number (2558741400).

Almost surely, 2^66441414466 is an apocalyptic number.

66441414466 is a deficient number, since it is larger than the sum of its proper divisors (56378172734).

66441414466 is a wasteful number, since it uses less digits than its factorization.

66441414466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21631 (or 21624 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 46.

The spelling of 66441414466 in words is "sixty-six billion, four hundred forty-one million, four hundred fourteen thousand, four hundred sixty-six".