12133005555 has 16 divisors (see below), whose sum is σ = 21177609984. Its totient is φ = 5882669280.

The previous prime is 12133005527. The next prime is 12133005581. The reversal of 12133005555 is 55550033121.

It is not a de Polignac number, because 12133005555 - 2¹⁰ = 12133004531 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36766519 + ... + 36766848.

It is an arithmetic number, because the mean of its divisors is an integer number (1323600624).

Almost surely, 2^12133005555 is an apocalyptic number.

12133005555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12133005555 is a deficient number, since it is larger than the sum of its proper divisors (9044604429).

12133005555 is a wasteful number, since it uses less digits than its factorization.

12133005555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73533386.

The product of its (nonzero) digits is 11250, while the sum is 30.

Adding to 12133005555 its reverse (55550033121), we get a palindrome (67683038676).

The spelling of 12133005555 in words is "twelve billion, one hundred thirty-three million, five thousand, five hundred fifty-five".