16449965433 has 48 divisors (see below), whose sum is σ = 26903612736. Its totient is φ = 9961367040.

The previous prime is 16449965419. The next prime is 16449965453. The reversal of 16449965433 is 33456994461.

It is a happy number.

16449965433 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 9 + 96 + 543 + 3 = 666.

It is not a de Polignac number, because 16449965433 - 2⁸ = 16449965177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16449965433.

It is not an unprimeable number, because it can be changed into a prime (16449965453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5111841 + ... + 5115057.

It is an arithmetic number, because the mean of its divisors is an integer number (560491932).

Almost surely, 2^16449965433 is an apocalyptic number.

It is an amenable number.

16449965433 is a deficient number, since it is larger than the sum of its proper divisors (10453647303).

16449965433 is a wasteful number, since it uses less digits than its factorization.

16449965433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156 (or 5144 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 16449965433 in words is "sixteen billion, four hundred forty-nine million, nine hundred sixty-five thousand, four hundred thirty-three".