2017985166 has 12 divisors (see below), whose sum is σ = 4372301232. Its totient is φ = 672661716.

The previous prime is 2017985161. The next prime is 2017985251. The reversal of 2017985166 is 6615897102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2017985161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56055126 + ... + 56055161.

It is an arithmetic number, because the mean of its divisors is an integer number (364358436).

Almost surely, 2^2017985166 is an apocalyptic number.

2017985166 is an abundant number, since it is smaller than the sum of its proper divisors (2354316066).

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

2017985166 is a wasteful number, since it uses less digits than its factorization.

2017985166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112110295 (or 112110292 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2017985166 is about 44921.9897822881. The cubic root of 2017985166 is about 1263.6864337118.

The spelling of 2017985166 in words is "two billion, seventeen million, nine hundred eighty-five thousand, one hundred sixty-six".