2016666668 has 6 divisors (see below), whose sum is σ = 3529166676. Its totient is φ = 1008333332.

The previous prime is 2016666629. The next prime is 2016666689. The reversal of 2016666668 is 8666666102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252083330 + ... + 252083337.

It is an arithmetic number, because the mean of its divisors is an integer number (588194446).

Almost surely, 2^2016666668 is an apocalyptic number.

It is an amenable number.

2016666668 is a deficient number, since it is larger than the sum of its proper divisors (1512500008).

2016666668 is a wasteful number, since it uses less digits than its factorization.

2016666668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504166671 (or 504166669 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 2016666668 is about 44907.3119658703. The cubic root of 2016666668 is about 1263.4111540134.

The spelling of 2016666668 in words is "two billion, sixteen million, six hundred sixty-six thousand, six hundred sixty-eight".