66663735244 has 6 divisors (see below), whose sum is σ = 116661536684. Its totient is φ = 33331867620.

The previous prime is 66663735221. The next prime is 66663735289. The reversal of 66663735244 is 44253736666.

It is a junction number, because it is equal to n+sod(n) for n = 66663735191 and 66663735200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8332966902 + ... + 8332966909.

Almost surely, 2^66663735244 is an apocalyptic number.

It is an amenable number.

66663735244 is a deficient number, since it is larger than the sum of its proper divisors (49997801440).

66663735244 is a wasteful number, since it uses less digits than its factorization.

66663735244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16665933815 (or 16665933813 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 52.

The spelling of 66663735244 in words is "sixty-six billion, six hundred sixty-three million, seven hundred thirty-five thousand, two hundred forty-four".