66000044 has 24 divisors (see below), whose sum is σ = 126273168. Its totient is φ = 29935040.

The previous prime is 66000043. The next prime is 66000047. The reversal of 66000044 is 44000066.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (66000043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23162 + ... + 25854.

It is an arithmetic number, because the mean of its divisors is an integer number (5261382).

Almost surely, 2^66000044 is an apocalyptic number.

It is an amenable number.

66000044 is a deficient number, since it is larger than the sum of its proper divisors (60273124).

66000044 is a wasteful number, since it uses less digits than its factorization.

66000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265 (or 3263 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 66000044 is about 8124.0411126483. The cubic root of 66000044 is about 404.1240918675.

The spelling of 66000044 in words is "sixty-six million, forty-four", and thus it is an aban number and an eban number.