16800000851 has 2 divisors, whose sum is σ = 16800000852. Its totient is φ = 16800000850.

The previous prime is 16800000839. The next prime is 16800000871. The reversal of 16800000851 is 15800000861.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16800000851 is a prime.

It is not a weakly prime, because it can be changed into another prime (16800000871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8400000425 + 8400000426.

It is an arithmetic number, because the mean of its divisors is an integer number (8400000426).

Almost surely, 2^16800000851 is an apocalyptic number.

16800000851 is a deficient number, since it is larger than the sum of its proper divisors (1).

16800000851 is an equidigital number, since it uses as much as digits as its factorization.

16800000851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 16800000851 in words is "sixteen billion, eight hundred million, eight hundred fifty-one", and thus it is an aban number.