66630204684 has 36 divisors (see below), whose sum is σ = 168437405136. Its totient is φ = 22208610528.

The previous prime is 66630204679. The next prime is 66630204731. The reversal of 66630204684 is 48640203666.

66630204684 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 (36).

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, 591262 + ... + 694874.

Almost surely, 2^66630204684 is an apocalyptic number.

It is an amenable number.

66630204684 is an abundant number, since it is smaller than the sum of its proper divisors (101807200452).

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

66630204684 is a wasteful number, since it uses less digits than its factorization.

66630204684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121486 (or 121481 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 66630204684 in words is "sixty-six billion, six hundred thirty million, two hundred four thousand, six hundred eighty-four".