16805836529205 has 16 divisors (see below), whose sum is σ = 28471064238144. Its totient is φ = 8435870885120.

The previous prime is 16805836529203. The next prime is 16805836529243. The reversal of 16805836529205 is 50292563850861.

It is not a de Polignac number, because 16805836529205 - 2¹ = 16805836529203 is a prime.

It is a super-2 number, since 2×16805836529205² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16805836529203) 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, 32952620391 + ... + 32952620900.

It is an arithmetic number, because the mean of its divisors is an integer number (1779441514884).

Almost surely, 2^{16805836529205} is an apocalyptic number.

16805836529205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16805836529205 is a deficient number, since it is larger than the sum of its proper divisors (11665227708939).

16805836529205 is a wasteful number, since it uses less digits than its factorization.

16805836529205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65905241316.

The product of its (nonzero) digits is 31104000, while the sum is 60.

The spelling of 16805836529205 in words is "sixteen trillion, eight hundred five billion, eight hundred thirty-six million, five hundred twenty-nine thousand, two hundred five".