12012561572058 has 16 divisors (see below), whose sum is σ = 26694581271360. Its totient is φ = 4004187190668.

The previous prime is 12012561572057. The next prime is 12012561572093. The reversal of 12012561572058 is 85027516521021.

It is a happy number.

12012561572058 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 2 + 5 + 615 + 7 + 20 + 5 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12012561572051) by changing a digit.

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, 111227421910 + ... + 111227422017.

It is an arithmetic number, because the mean of its divisors is an integer number (1668411329460).

Almost surely, 2^{12012561572058} is an apocalyptic number.

12012561572058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12012561572058 is an abundant number, since it is smaller than the sum of its proper divisors (14682019699302).

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

12012561572058 is a wasteful number, since it uses less digits than its factorization.

12012561572058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222454843938 (or 222454843932 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The spelling of 12012561572058 in words is "twelve trillion, twelve billion, five hundred sixty-one million, five hundred seventy-two thousand, fifty-eight".