66571166060 has 24 divisors (see below), whose sum is σ = 159770798880. Its totient is φ = 22824399744.

The previous prime is 66571166059. The next prime is 66571166069. The reversal of 66571166060 is 6066117566.

It is not an unprimeable number, because it can be changed into a prime (66571166069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237754025 + ... + 237754304.

It is an arithmetic number, because the mean of its divisors is an integer number (6657116620).

Almost surely, 2^66571166060 is an apocalyptic number.

It is an amenable number.

66571166060 is an abundant number, since it is smaller than the sum of its proper divisors (93199632820).

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

66571166060 is a wasteful number, since it uses less digits than its factorization.

66571166060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475508345 (or 475508343 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 66571166060 in words is "sixty-six billion, five hundred seventy-one million, one hundred sixty-six thousand, sixty".