16536459538 has 16 divisors (see below), whose sum is σ = 26277009120. Its totient is φ = 7777946176.

The previous prime is 16536459529. The next prime is 16536459571. The reversal of 16536459538 is 83595463561.

16536459538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16536459538² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53308 + ... + 189511.

It is an arithmetic number, because the mean of its divisors is an integer number (1642313070).

Almost surely, 2^16536459538 is an apocalyptic number.

16536459538 is a deficient number, since it is larger than the sum of its proper divisors (9740549582).

16536459538 is a wasteful number, since it uses less digits than its factorization.

16536459538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244841.

The product of its digits is 11664000, while the sum is 55.

The spelling of 16536459538 in words is "sixteen billion, five hundred thirty-six million, four hundred fifty-nine thousand, five hundred thirty-eight".