12027855805055 has 8 divisors (see below), whose sum is σ = 14496455032800. Its totient is φ = 9580265932896.

The previous prime is 12027855804989. The next prime is 12027855805061. The reversal of 12027855805055 is 55050855872021.

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

It is a cyclic number.

It is not a de Polignac number, because 12027855805055 - 2⁸ = 12027855804799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12027855804988 and 12027855805006.

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 7 ways as a sum of consecutive naturals, for example, 5252337635 + ... + 5252339924.

It is an arithmetic number, because the mean of its divisors is an integer number (1812056879100).

Almost surely, 2^{12027855805055} is an apocalyptic number.

12027855805055 is a deficient number, since it is larger than the sum of its proper divisors (2468599227745).

12027855805055 is a wasteful number, since it uses less digits than its factorization.

12027855805055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10504677793.

The product of its (nonzero) digits is 5600000, while the sum is 53.

The spelling of 12027855805055 in words is "twelve trillion, twenty-seven billion, eight hundred fifty-five million, eight hundred five thousand, fifty-five".