166785001112 has 16 divisors (see below), whose sum is σ = 312735173400. Its totient is φ = 83388954880.

The previous prime is 166785001109. The next prime is 166785001177. The reversal of 166785001112 is 211100587661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237689 + ... + 624552.

Almost surely, 2^166785001112 is an apocalyptic number.

It is an amenable number.

166785001112 is a deficient number, since it is larger than the sum of its proper divisors (145950172288).

166785001112 is a wasteful number, since it uses less digits than its factorization.

166785001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886426 (or 886422 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

Adding to 166785001112 its reverse (211100587661), we get a palindrome (377885588773).

The spelling of 166785001112 in words is "one hundred sixty-six billion, seven hundred eighty-five million, one thousand, one hundred twelve".