2000168685 has 12 divisors (see below), whose sum is σ = 3466959132. Its totient is φ = 1066756608.

The previous prime is 2000168663. The next prime is 2000168719. The reversal of 2000168685 is 5868610002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 793717929 + 1206450756 = 28173^2 + 34734^2 .

It is not a de Polignac number, because 2000168685 - 2⁷ = 2000168557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22224052 + ... + 22224141.

It is an arithmetic number, because the mean of its divisors is an integer number (288913261).

Almost surely, 2^2000168685 is an apocalyptic number.

It is an amenable number.

2000168685 is a deficient number, since it is larger than the sum of its proper divisors (1466790447).

2000168685 is a wasteful number, since it uses less digits than its factorization.

2000168685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44448204 (or 44448201 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2000168685 is about 44723.2454658648. The cubic root of 2000168685 is about 1259.9564705295.

Adding to 2000168685 its reverse (5868610002), we get a palindrome (7868778687).

The spelling of 2000168685 in words is "two billion, one hundred sixty-eight thousand, six hundred eighty-five".