2006169985 has 8 divisors (see below), whose sum is σ = 2408486976. Its totient is φ = 1604214000.

The previous prime is 2006169973. The next prime is 2006170027. The reversal of 2006169985 is 5899616002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2006169985 - 2¹¹ = 2006167937 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 77869 + ... + 100378.

It is an arithmetic number, because the mean of its divisors is an integer number (301060872).

Almost surely, 2^2006169985 is an apocalyptic number.

It is an amenable number.

2006169985 is a deficient number, since it is larger than the sum of its proper divisors (402316991).

2006169985 is a wasteful number, since it uses less digits than its factorization.

2006169985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180503.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 2006169985 is about 44790.2889586571. The cubic root of 2006169985 is about 1261.2153355153.

It can be divided in two parts, 2006 and 169985, that added together give a triangular number (171991 = T₅₈₆).

The spelling of 2006169985 in words is "two billion, six million, one hundred sixty-nine thousand, nine hundred eighty-five".