16253404563 has 32 divisors (see below), whose sum is σ = 24439449600. Its totient is φ = 9518918400.

The previous prime is 16253404507. The next prime is 16253404571. The reversal of 16253404563 is 36540435261.

16253404563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16253404563 - 2⁹ = 16253404051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16253404663) 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 in 31 ways as a sum of consecutive naturals, for example, 714103 + ... + 736511.

It is an arithmetic number, because the mean of its divisors is an integer number (763732800).

Almost surely, 2^16253404563 is an apocalyptic number.

16253404563 is a deficient number, since it is larger than the sum of its proper divisors (8186045037).

16253404563 is a wasteful number, since it uses less digits than its factorization.

16253404563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23163.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 16253404563 in words is "sixteen billion, two hundred fifty-three million, four hundred four thousand, five hundred sixty-three".