16221046403 has 2 divisors, whose sum is σ = 16221046404. Its totient is φ = 16221046402.

The previous prime is 16221046397. The next prime is 16221046411. The reversal of 16221046403 is 30464012261.

16221046403 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 not a de Polignac number, because 16221046403 - 2⁸ = 16221046147 is a prime.

It is not a weakly prime, because it can be changed into another prime (16221040403) 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, 8110523201 + 8110523202.

It is an arithmetic number, because the mean of its divisors is an integer number (8110523202).

Almost surely, 2^16221046403 is an apocalyptic number.

16221046403 is a deficient number, since it is larger than the sum of its proper divisors (1).

16221046403 is an equidigital number, since it uses as much as digits as its factorization.

16221046403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 16221046403 its reverse (30464012261), we get a palindrome (46685058664).

The spelling of 16221046403 in words is "sixteen billion, two hundred twenty-one million, forty-six thousand, four hundred three".