166717116005 has 24 divisors (see below), whose sum is σ = 219933667800. Its totient is φ = 121230940160.

The previous prime is 166717115953. The next prime is 166717116017. The reversal of 166717116005 is 500611717661.

166717116005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6423381316 + 160293734689 = 80146^2 + 400367^2 .

It is not a de Polignac number, because 166717116005 - 2²⁶ = 166650007141 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 5192441 + ... + 5224449.

It is an arithmetic number, because the mean of its divisors is an integer number (9163902825).

Almost surely, 2^166717116005 is an apocalyptic number.

It is an amenable number.

166717116005 is a deficient number, since it is larger than the sum of its proper divisors (53216551795).

166717116005 is a wasteful number, since it uses less digits than its factorization.

166717116005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40645 (or 40634 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 166717116005 in words is "one hundred sixty-six billion, seven hundred seventeen million, one hundred sixteen thousand, five".