16804947805 has 8 divisors (see below), whose sum is σ = 20168029152. Its totient is φ = 13442563728.

The previous prime is 16804947793. The next prime is 16804947827. The reversal of 16804947805 is 50874940861.

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

It is a cyclic number.

It is not a de Polignac number, because 16804947805 - 2⁵ = 16804947773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119739 + ... + 218968.

It is an arithmetic number, because the mean of its divisors is an integer number (2521003644).

Almost surely, 2^16804947805 is an apocalyptic number.

It is an amenable number.

16804947805 is a deficient number, since it is larger than the sum of its proper divisors (3363081347).

16804947805 is an equidigital number, since it uses as much as digits as its factorization.

16804947805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348635.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 16804947805 in words is "sixteen billion, eight hundred four million, nine hundred forty-seven thousand, eight hundred five".