16297388432 has 40 divisors (see below), whose sum is σ = 34014307320. Its totient is φ = 7519841280.

The previous prime is 16297388423. The next prime is 16297388449. The reversal of 16297388432 is 23488379261.

16297388432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 243484816 + 16053903616 = 15604^2 + 126704^2 .

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, 987932 + ... + 1004292.

It is an arithmetic number, because the mean of its divisors is an integer number (850357683).

Almost surely, 2^16297388432 is an apocalyptic number.

It is an amenable number.

16297388432 is an abundant number, since it is smaller than the sum of its proper divisors (17716918888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16297388432 is a wasteful number, since it uses less digits than its factorization.

16297388432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21171 (or 21165 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The spelling of 16297388432 in words is "sixteen billion, two hundred ninety-seven million, three hundred eighty-eight thousand, four hundred thirty-two".