66000130660 has 24 divisors (see below), whose sum is σ = 138610704960. Its totient is φ = 26398065504.

The previous prime is 66000130643. The next prime is 66000130739. The reversal of 66000130660 is 6603100066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164611 + ... + 398869.

It is an arithmetic number, because the mean of its divisors is an integer number (5775446040).

Almost surely, 2^66000130660 is an apocalyptic number.

It is an amenable number.

66000130660 is an abundant number, since it is smaller than the sum of its proper divisors (72610574300).

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

66000130660 is a wasteful number, since it uses less digits than its factorization.

66000130660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248355 (or 248353 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 66000130660 in words is "sixty-six billion, one hundred thirty thousand, six hundred sixty".