16449996384 has 72 divisors (see below), whose sum is σ = 47920679352. Its totient is φ = 5349588480.

The previous prime is 16449996383. The next prime is 16449996397. The reversal of 16449996384 is 48369994461.

16449996384 is a `hidden beast` number, since 1 + 6 + 4 + 499 + 9 + 63 + 84 = 666.

16449996384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×16449996384² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16449996383) 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 11 ways as a sum of consecutive naturals, for example, 684754 + ... + 708369.

It is an arithmetic number, because the mean of its divisors is an integer number (665564991).

Almost surely, 2^16449996384 is an apocalyptic number.

It is an amenable number.

16449996384 is an abundant number, since it is smaller than the sum of its proper divisors (31470682968).

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

16449996384 is a wasteful number, since it uses less digits than its factorization.

16449996384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393180 (or 1393169 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 16449996384 in words is "sixteen billion, four hundred forty-nine million, nine hundred ninety-six thousand, three hundred eighty-four".