16806105 has 24 divisors (see below), whose sum is σ = 29844360. Its totient is φ = 8743680.

The previous prime is 16806071. The next prime is 16806173. The reversal of 16806105 is 50160861.

It can be written as a sum of positive squares in 4 ways, for example, as 549081 + 16257024 = 741^2 + 4032^2 .

It is not a de Polignac number, because 16806105 - 2⁸ = 16805849 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2710 + ... + 6399.

It is an arithmetic number, because the mean of its divisors is an integer number (1243515).

Almost surely, 2^16806105 is an apocalyptic number.

16806105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16806105 is a deficient number, since it is larger than the sum of its proper divisors (13038255).

16806105 is a wasteful number, since it uses less digits than its factorization.

16806105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9161 (or 9158 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 16806105 is about 4099.5249724816. The cubic root of 16806105 is about 256.1468527951.

Adding to 16806105 its reverse (50160861), we get a palindrome (66966966).

The spelling of 16806105 in words is "sixteen million, eight hundred six thousand, one hundred five".