66583247216 has 40 divisors (see below), whose sum is σ = 134696140800. Its totient is φ = 31824720576.

The previous prime is 66583247201. The next prime is 66583247249. The reversal of 66583247216 is 61274238566.

It is a happy number.

66583247216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557585 + ... + 666383.

It is an arithmetic number, because the mean of its divisors is an integer number (3367403520).

Almost surely, 2^66583247216 is an apocalyptic number.

It is an amenable number.

66583247216 is an abundant number, since it is smaller than the sum of its proper divisors (68112893584).

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

66583247216 is a wasteful number, since it uses less digits than its factorization.

66583247216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110493 (or 110487 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 66583247216 in words is "sixty-six billion, five hundred eighty-three million, two hundred forty-seven thousand, two hundred sixteen".