12010805055 has 24 divisors (see below), whose sum is σ = 20837354928. Its totient is φ = 6400031616.

The previous prime is 12010805017. The next prime is 12010805057. The reversal of 12010805055 is 55050801021.

It is not a de Polignac number, because 12010805055 - 2¹⁵ = 12010772287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010805057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68302 + ... + 169371.

It is an arithmetic number, because the mean of its divisors is an integer number (868223122).

Almost surely, 2^12010805055 is an apocalyptic number.

12010805055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12010805055 is a deficient number, since it is larger than the sum of its proper divisors (8826549873).

12010805055 is a wasteful number, since it uses less digits than its factorization.

12010805055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238807 (or 238804 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 12010805055 in words is "twelve billion, ten million, eight hundred five thousand, fifty-five".