16647883399 has 4 divisors (see below), whose sum is σ = 19026152464. Its totient is φ = 14269614336.

The previous prime is 16647883393. The next prime is 16647883411. The reversal of 16647883399 is 99338874661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16647883399 - 2⁷ = 16647883271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16647883399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16647883393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189134522 + ... + 1189134535.

It is an arithmetic number, because the mean of its divisors is an integer number (4756538116).

Almost surely, 2^16647883399 is an apocalyptic number.

16647883399 is a deficient number, since it is larger than the sum of its proper divisors (2378269065).

16647883399 is an equidigital number, since it uses as much as digits as its factorization.

16647883399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378269064.

The product of its digits is 47029248, while the sum is 64.

The spelling of 16647883399 in words is "sixteen billion, six hundred forty-seven million, eight hundred eighty-three thousand, three hundred ninety-nine".