12055533500 has 48 divisors (see below), whose sum is σ = 26340062112. Its totient is φ = 4820240000.

The previous prime is 12055533491. The next prime is 12055533521. The reversal of 12055533500 is 533555021.

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 15 ways as a sum of consecutive naturals, for example, 2222792 + ... + 2228208.

It is an arithmetic number, because the mean of its divisors is an integer number (548751294).

Almost surely, 2^12055533500 is an apocalyptic number.

12055533500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055533500 is an abundant number, since it is smaller than the sum of its proper divisors (14284528612).

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

12055533500 is a wasteful number, since it uses less digits than its factorization.

12055533500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887 (or 9875 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The spelling of 12055533500 in words is "twelve billion, fifty-five million, five hundred thirty-three thousand, five hundred".