16440479563 has 2 divisors, whose sum is σ = 16440479564. Its totient is φ = 16440479562.

The previous prime is 16440479537. The next prime is 16440479569. The reversal of 16440479563 is 36597404461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16440479563 is a prime.

It is a super-3 number, since 3×16440479563³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (16440479569) 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, 8220239781 + 8220239782.

It is an arithmetic number, because the mean of its divisors is an integer number (8220239782).

Almost surely, 2^16440479563 is an apocalyptic number.

16440479563 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440479563 is an equidigital number, since it uses as much as digits as its factorization.

16440479563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 16440479563 in words is "sixteen billion, four hundred forty million, four hundred seventy-nine thousand, five hundred sixty-three".