66066044 has 12 divisors (see below), whose sum is σ = 126126168. Its totient is φ = 30030000.

The previous prime is 66066043. The next prime is 66066073. The reversal of 66066044 is 44066066.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66066044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66066043) 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, 750707 + ... + 750794.

It is an arithmetic number, because the mean of its divisors is an integer number (10510514).

Almost surely, 2^66066044 is an apocalyptic number.

It is an amenable number.

66066044 is a deficient number, since it is larger than the sum of its proper divisors (60060124).

66066044 is a wasteful number, since it uses less digits than its factorization.

66066044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501516 (or 1501514 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66066044 is about 8128.1021155003. The cubic root of 66066044 is about 404.2587549307.

The spelling of 66066044 in words is "sixty-six million, sixty-six thousand, forty-four", and thus it is an eban number.