16418306687 has 2 divisors, whose sum is σ = 16418306688. Its totient is φ = 16418306686.

The previous prime is 16418306659. The next prime is 16418306719. The reversal of 16418306687 is 78660381461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16418306687 - 2⁸ = 16418306431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16418306617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8209153343 + 8209153344.

It is an arithmetic number, because the mean of its divisors is an integer number (8209153344).

Almost surely, 2^16418306687 is an apocalyptic number.

16418306687 is a deficient number, since it is larger than the sum of its proper divisors (1).

16418306687 is an equidigital number, since it uses as much as digits as its factorization.

16418306687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 16418306687 in words is "sixteen billion, four hundred eighteen million, three hundred six thousand, six hundred eighty-seven".