16541454403 has 2 divisors, whose sum is σ = 16541454404. Its totient is φ = 16541454402.

The previous prime is 16541454379. The next prime is 16541454407. The reversal of 16541454403 is 30445414561.

16541454403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16541454403 - 2¹³ = 16541446211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16541454407) 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, 8270727201 + 8270727202.

It is an arithmetic number, because the mean of its divisors is an integer number (8270727202).

Almost surely, 2^16541454403 is an apocalyptic number.

16541454403 is a deficient number, since it is larger than the sum of its proper divisors (1).

16541454403 is an equidigital number, since it uses as much as digits as its factorization.

16541454403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 16541454403 its reverse (30445414561), we get a palindrome (46986868964).

The spelling of 16541454403 in words is "sixteen billion, five hundred forty-one million, four hundred fifty-four thousand, four hundred three".