2012663258856 has 24 divisors (see below), whose sum is σ = 5450962992930. Its totient is φ = 670887752928.

The previous prime is 2012663258849. The next prime is 2012663258887. The reversal of 2012663258856 is 6588523662102.

2012663258856 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 6 + 6 + 3 + 2 + 588 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1489595840100 + 523067418756 = 1220490^2 + 723234^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 13976828115 + ... + 13976828258.

Almost surely, 2^{2012663258856} is an apocalyptic number.

It is an amenable number.

2012663258856 is an abundant number, since it is smaller than the sum of its proper divisors (3438299734074).

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

2012663258856 is a wasteful number, since it uses less digits than its factorization.

2012663258856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27953656385 (or 27953656378 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 2012663258856 in words is "two trillion, twelve billion, six hundred sixty-three million, two hundred fifty-eight thousand, eight hundred fifty-six".