16404000009 has 8 divisors (see below), whose sum is σ = 23158588320. Its totient is φ = 10292705856.

The previous prime is 16403999971. The next prime is 16404000059. The reversal of 16404000009 is 90000040461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16404000009 - 2⁷ = 16403999881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16404000059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160823479 + ... + 160823580.

It is an arithmetic number, because the mean of its divisors is an integer number (2894823540).

Almost surely, 2^16404000009 is an apocalyptic number.

It is an amenable number.

16404000009 is a deficient number, since it is larger than the sum of its proper divisors (6754588311).

16404000009 is a wasteful number, since it uses less digits than its factorization.

16404000009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321647079.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 16404000009 in words is "sixteen billion, four hundred four million, nine", and thus it is an aban number.