16203718943 has 2 divisors, whose sum is σ = 16203718944. Its totient is φ = 16203718942.

The previous prime is 16203718933. The next prime is 16203719033. The reversal of 16203718943 is 34981730261.

16203718943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16203718943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16203718894 and 16203718903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16203718933) by changing a digit.

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 as a sum of consecutive naturals, namely, 8101859471 + 8101859472.

It is an arithmetic number, because the mean of its divisors is an integer number (8101859472).

Almost surely, 2^16203718943 is an apocalyptic number.

16203718943 is a deficient number, since it is larger than the sum of its proper divisors (1).

16203718943 is an equidigital number, since it uses as much as digits as its factorization.

16203718943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 16203718943 in words is "sixteen billion, two hundred three million, seven hundred eighteen thousand, nine hundred forty-three".