166848668485 has 4 divisors (see below), whose sum is σ = 200218402188. Its totient is φ = 133478934784.

The previous prime is 166848668477. The next prime is 166848668491. The reversal of 166848668485 is 584866848661.

166848668485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67574522401 + 99274146084 = 259951^2 + 315078^2 .

It is a cyclic number.

It is not a de Polignac number, because 166848668485 - 2³ = 166848668477 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 16684866844 + ... + 16684866853.

It is an arithmetic number, because the mean of its divisors is an integer number (50054600547).

Almost surely, 2^166848668485 is an apocalyptic number.

It is an amenable number.

166848668485 is a deficient number, since it is larger than the sum of its proper divisors (33369733703).

166848668485 is an equidigital number, since it uses as much as digits as its factorization.

166848668485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33369733702.

The product of its digits is 424673280, while the sum is 70.

The spelling of 166848668485 in words is "one hundred sixty-six billion, eight hundred forty-eight million, six hundred sixty-eight thousand, four hundred eighty-five".