5561326850400 has 432 divisors, whose sum is σ = 20185732030464. Its totient is φ = 1440026864640.

The previous prime is 5561326850389. The next prime is 5561326850407. The reversal of 5561326850400 is 40586231655.

5561326850400 is a `hidden beast` number, since 5 + 5 + 6 + 132 + 6 + 8 + 504 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561326850407) 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 71 ways as a sum of consecutive naturals, for example, 42912099 + ... + 43041501.

It is an arithmetic number, because the mean of its divisors is an integer number (46726231552).

Almost surely, 2^{5561326850400} is an apocalyptic number.

5561326850400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561326850400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10092866015232).

5561326850400 is an abundant number, since it is smaller than the sum of its proper divisors (14624405180064).

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

5561326850400 is a wasteful number, since it uses less digits than its factorization.

5561326850400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129603 (or 129587 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 5561326850400 in words is "five trillion, five hundred sixty-one billion, three hundred twenty-six million, eight hundred fifty thousand, four hundred".