16805354257210 has 8 divisors (see below), whose sum is σ = 30249637662996. Its totient is φ = 6722141702880.

The previous prime is 16805354257127. The next prime is 16805354257217. The reversal of 16805354257210 is 1275245350861.

It can be written as a sum of positive squares in 2 ways, for example, as 16082995350321 + 722358906889 = 4010361^2 + 849917^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16805354257217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840267712851 + ... + 840267712870.

Almost surely, 2^{16805354257210} is an apocalyptic number.

16805354257210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16805354257210 is a deficient number, since it is larger than the sum of its proper divisors (13444283405786).

16805354257210 is a wasteful number, since it uses less digits than its factorization.

16805354257210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680535425728.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 16805354257210 in words is "sixteen trillion, eight hundred five billion, three hundred fifty-four million, two hundred fifty-seven thousand, two hundred ten".