12552820012644 has 12 divisors (see below), whose sum is σ = 29289913362864. Its totient is φ = 4184273337544.

The previous prime is 12552820012619. The next prime is 12552820012673. The reversal of 12552820012644 is 44621002825521.

12552820012644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12552820012596 and 12552820012605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523034167182 + ... + 523034167205.

It is an arithmetic number, because the mean of its divisors is an integer number (2440826113572).

Almost surely, 2^{12552820012644} is an apocalyptic number.

It is an amenable number.

12552820012644 is an abundant number, since it is smaller than the sum of its proper divisors (16737093350220).

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

12552820012644 is a wasteful number, since it uses less digits than its factorization.

12552820012644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046068334394 (or 1046068334392 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 12552820012644 in words is "twelve trillion, five hundred fifty-two billion, eight hundred twenty million, twelve thousand, six hundred forty-four".