66061010610171 has 8 divisors (see below), whose sum is σ = 97868163866960. Its totient is φ = 44040673740096.

The previous prime is 66061010610113. The next prime is 66061010610181. The reversal of 66061010610171 is 17101601016066.

66061010610171 is a `hidden beast` number, since 6 + 6 + 0 + 6 + 10 + 10 + 610 + 17 + 1 = 666.

66061010610171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66061010610171 - 2⁶ = 66061010610107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66061010610181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223352048310 + ... + 1223352048363.

It is an arithmetic number, because the mean of its divisors is an integer number (12233520483370).

Almost surely, 2^{66061010610171} is an apocalyptic number.

66061010610171 is a deficient number, since it is larger than the sum of its proper divisors (31807153256789).

66061010610171 is a wasteful number, since it uses less digits than its factorization.

66061010610171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446704096682 (or 2446704096676 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 66061010610171 in words is "sixty-six trillion, sixty-one billion, ten million, six hundred ten thousand, one hundred seventy-one".