16843332909 has 16 divisors (see below), whose sum is σ = 24192504000. Its totient is φ = 10362039936.

The previous prime is 16843332829. The next prime is 16843332949. The reversal of 16843332909 is 90923334861.

It is a happy number.

It is not a de Polignac number, because 16843332909 - 2²⁴ = 16826555693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16843332949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71902 + ... + 197120.

It is an arithmetic number, because the mean of its divisors is an integer number (1512031500).

Almost surely, 2^16843332909 is an apocalyptic number.

It is an amenable number.

16843332909 is a deficient number, since it is larger than the sum of its proper divisors (7349171091).

16843332909 is a wasteful number, since it uses less digits than its factorization.

16843332909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128684.

The product of its (nonzero) digits is 839808, while the sum is 48.

The spelling of 16843332909 in words is "sixteen billion, eight hundred forty-three million, three hundred thirty-two thousand, nine hundred nine".