20855045118 has 8 divisors (see below), whose sum is σ = 41710090248. Its totient is φ = 6951681704.

The previous prime is 20855045087. The next prime is 20855045129. The reversal of 20855045118 is 81154055802.

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

20855045118 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737920421 + ... + 1737920432.

It is an arithmetic number, because the mean of its divisors is an integer number (5213761281).

Almost surely, 2^20855045118 is an apocalyptic number.

20855045118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20855045118 is a wasteful number, since it uses less digits than its factorization.

20855045118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475840858.

The product of its (nonzero) digits is 64000, while the sum is 39.

The spelling of 20855045118 in words is "twenty billion, eight hundred fifty-five million, forty-five thousand, one hundred eighteen".