66710010066 has 64 divisors (see below), whose sum is σ = 154160133120. Its totient is φ = 18850582080.

The previous prime is 66710010043. The next prime is 66710010067. The reversal of 66710010066 is 66001001766.

It is not an unprimeable number, because it can be changed into a prime (66710010067) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2769796 + ... + 2793776.

It is an arithmetic number, because the mean of its divisors is an integer number (2408752080).

Almost surely, 2^66710010066 is an apocalyptic number.

66710010066 is an abundant number, since it is smaller than the sum of its proper divisors (87450123054).

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

66710010066 is a wasteful number, since it uses less digits than its factorization.

66710010066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24719.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 66710010066 in words is "sixty-six billion, seven hundred ten million, ten thousand, sixty-six".