5561326080 has 320 divisors, whose sum is σ = 20093356800. Its totient is φ = 1457602560.

The previous prime is 5561326051. The next prime is 5561326097. The reversal of 5561326080 is 806231655.

5561326080 is a `hidden beast` number, since 5 + 561 + 32 + 60 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4215661 + ... + 4216979.

It is an arithmetic number, because the mean of its divisors is an integer number (62791740).

Almost surely, 2^5561326080 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 5561326080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10046678400).

5561326080 is an abundant number, since it is smaller than the sum of its proper divisors (14532030720).

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

5561326080 is a wasteful number, since it uses less digits than its factorization.

5561326080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 5561326080 is about 74574.2990580535. The cubic root of 5561326080 is about 1771.7106128392.

The spelling of 5561326080 in words is "five billion, five hundred sixty-one million, three hundred twenty-six thousand, eighty".