5556440664125 has 64 divisors (see below), whose sum is σ = 7528511390400. Its totient is φ = 4094223744000.

The previous prime is 5556440664067. The next prime is 5556440664143. The reversal of 5556440664125 is 5214660446555.

5556440664125 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 32 ways, for example, as 3693941773369 + 1862498890756 = 1921963^2 + 1364734^2 .

It is not a de Polignac number, because 5556440664125 - 2¹⁴ = 5556440647741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126580181 + ... + 126624069.

It is an arithmetic number, because the mean of its divisors is an integer number (117632990475).

Almost surely, 2^{5556440664125} is an apocalyptic number.

It is an amenable number.

5556440664125 is a deficient number, since it is larger than the sum of its proper divisors (1972070726275).

5556440664125 is an equidigital number, since it uses as much as digits as its factorization.

5556440664125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44404 (or 44368 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 53.

The spelling of 5556440664125 in words is "five trillion, five hundred fifty-six billion, four hundred forty million, six hundred sixty-four thousand, one hundred twenty-five".