201811105880 has 32 divisors (see below), whose sum is σ = 454093365600. Its totient is φ = 80721175296.

The previous prime is 201811105871. The next prime is 201811105901. The reversal of 201811105880 is 88501118102.

201811105880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201811105880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062644 + ... + 1238076.

It is an arithmetic number, because the mean of its divisors is an integer number (14190417675).

Almost surely, 2^201811105880 is an apocalyptic number.

201811105880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201811105880 is an abundant number, since it is smaller than the sum of its proper divisors (252282259720).

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

201811105880 is a wasteful number, since it uses less digits than its factorization.

201811105880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204203 (or 204199 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 35.

The spelling of 201811105880 in words is "two hundred one billion, eight hundred eleven million, one hundred five thousand, eight hundred eighty".