5556355243920 has 840 divisors, whose sum is σ = 22078065216960. Its totient is φ = 1295689374720.

The previous prime is 5556355243883. The next prime is 5556355243927. The reversal of 5556355243920 is 293425536555.

5556355243920 is a `hidden beast` number, since 5 + 5 + 5 + 63 + 5 + 524 + 39 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5556355243927) by changing a digit.

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 167 ways as a sum of consecutive naturals, for example, 187250685 + ... + 187280355.

Almost surely, 2^{5556355243920} 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 5556355243920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11039032608480).

5556355243920 is an abundant number, since it is smaller than the sum of its proper divisors (16521709973040).

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

5556355243920 is a wasteful number, since it uses less digits than its factorization.

5556355243920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29747 (or 29713 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 54.

The spelling of 5556355243920 in words is "five trillion, five hundred fifty-six billion, three hundred fifty-five million, two hundred forty-three thousand, nine hundred twenty".