12056605215 has 32 divisors (see below), whose sum is σ = 19820660160. Its totient is φ = 6253645824.

The previous prime is 12056605153. The next prime is 12056605243. The reversal of 12056605215 is 51250665021.

12056605215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12056605215 - 2⁶ = 12056605151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2055567 + ... + 2061423.

It is an arithmetic number, because the mean of its divisors is an integer number (619395630).

Almost surely, 2^12056605215 is an apocalyptic number.

12056605215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12056605215 is a deficient number, since it is larger than the sum of its proper divisors (7764054945).

12056605215 is a wasteful number, since it uses less digits than its factorization.

12056605215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9611.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 12056605215 in words is "twelve billion, fifty-six million, six hundred five thousand, two hundred fifteen".