66064044 has 12 divisors (see below), whose sum is σ = 154149464. Its totient is φ = 22021344.

The previous prime is 66064043. The next prime is 66064049. The reversal of 66064044 is 44046066.

66064044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (66064043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752657 + ... + 2752680.

Almost surely, 2^66064044 is an apocalyptic number.

It is an amenable number.

66064044 is an abundant number, since it is smaller than the sum of its proper divisors (88085420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66064044 is a wasteful number, since it uses less digits than its factorization.

66064044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505344 (or 5505342 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 66064044 is about 8127.9790846188. The cubic root of 66064044 is about 404.2546755498.

The spelling of 66064044 in words is "sixty-six million, sixty-four thousand, forty-four", and thus it is an eban number.