16855052005 has 32 divisors (see below), whose sum is σ = 22806199296. Its totient is φ = 11847360000.

The previous prime is 16855051991. The next prime is 16855052009. The reversal of 16855052005 is 50025055861.

It is not a de Polignac number, because 16855052005 - 2²⁵ = 16821497573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16855052009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1393785 + ... + 1405825.

It is an arithmetic number, because the mean of its divisors is an integer number (712693728).

Almost surely, 2^16855052005 is an apocalyptic number.

It is an amenable number.

16855052005 is a deficient number, since it is larger than the sum of its proper divisors (5951147291).

16855052005 is a wasteful number, since it uses less digits than its factorization.

16855052005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12909.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 16855052005 in words is "sixteen billion, eight hundred fifty-five million, fifty-two thousand, five".