66073637066 has 24 divisors (see below), whose sum is σ = 100411877700. Its totient is φ = 32608270656.

The previous prime is 66073637059. The next prime is 66073637083.

66073637066 is nontrivially palindromic in base 10.

66073637066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55780520041 + 10293117025 = 236179^2 + 101455^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6636260 + ... + 6646208.

Almost surely, 2^66073637066 is an apocalyptic number.

66073637066 is a deficient number, since it is larger than the sum of its proper divisors (34338240634).

66073637066 is a wasteful number, since it uses less digits than its factorization.

66073637066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10470 (or 10367 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 50.

The spelling of 66073637066 in words is "sixty-six billion, seventy-three million, six hundred thirty-seven thousand, sixty-six".