5581109880 has 192 divisors, whose sum is σ = 18738682560. Its totient is φ = 1439852544.

The previous prime is 5581109839. The next prime is 5581109927. The reversal of 5581109880 is 889011855.

5581109880 is a `hidden beast` number, since 558 + 1 + 1 + 0 + 98 + 8 + 0 = 666.

It is a super-2 number, since 2×5581109880² = 62297574985267228800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1390837 + ... + 1394843.

It is an arithmetic number, because the mean of its divisors is an integer number (97597305).

Almost surely, 2^5581109880 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 5581109880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9369341280).

5581109880 is an abundant number, since it is smaller than the sum of its proper divisors (13157572680).

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

5581109880 is a wasteful number, since it uses less digits than its factorization.

5581109880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4143 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 45.

The square root of 5581109880 is about 74706.8261941303. The cubic root of 5581109880 is about 1773.8090144507.

The spelling of 5581109880 in words is "five billion, five hundred eighty-one million, one hundred nine thousand, eight hundred eighty".