5556441687720 has 256 divisors, whose sum is σ = 20830546759680. Its totient is φ = 1151917977600.

The previous prime is 5556441687691. The next prime is 5556441687803. The reversal of 5556441687720 is 277861446555.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3306525 + ... + 4695315.

It is an arithmetic number, because the mean of its divisors is an integer number (81369323280).

Almost surely, 2^{5556441687720} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5556441687720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10415273379840).

5556441687720 is an abundant number, since it is smaller than the sum of its proper divisors (15274105071960).

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

5556441687720 is a wasteful number, since it uses less digits than its factorization.

5556441687720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389256 (or 1389252 counting only the distinct ones).

The product of its (nonzero) digits is 56448000, while the sum is 60.

The spelling of 5556441687720 in words is "five trillion, five hundred fifty-six billion, four hundred forty-one million, six hundred eighty-seven thousand, seven hundred twenty".