16544043419 has 2 divisors, whose sum is σ = 16544043420. Its totient is φ = 16544043418.

The previous prime is 16544043401. The next prime is 16544043427. The reversal of 16544043419 is 91434044561.

16544043419 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 a de Polignac number, because none of the positive numbers 2^k-16544043419 is a prime.

It is a super-2 number, since 2×16544043419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16544043469) 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, 8272021709 + 8272021710.

It is an arithmetic number, because the mean of its divisors is an integer number (8272021710).

Almost surely, 2^16544043419 is an apocalyptic number.

16544043419 is a deficient number, since it is larger than the sum of its proper divisors (1).

16544043419 is an equidigital number, since it uses as much as digits as its factorization.

16544043419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 16544043419 in words is "sixteen billion, five hundred forty-four million, forty-three thousand, four hundred nineteen".