5561111109 has 8 divisors (see below), whose sum is σ = 7415193600. Its totient is φ = 3707218016.

The previous prime is 5561111093. The next prime is 5561111113. The reversal of 5561111109 is 9011111655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5561111109 - 2⁴ = 5561111093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561111119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49417 + ... + 116465.

It is an arithmetic number, because the mean of its divisors is an integer number (926899200).

Almost surely, 2^5561111109 is an apocalyptic number.

It is an amenable number.

5561111109 is a deficient number, since it is larger than the sum of its proper divisors (1854082491).

5561111109 is a wasteful number, since it uses less digits than its factorization.

5561111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94699.

The product of its (nonzero) digits is 1350, while the sum is 30.

The square root of 5561111109 is about 74572.8577231690. The cubic root of 5561111109 is about 1771.6877842726.

The spelling of 5561111109 in words is "five billion, five hundred sixty-one million, one hundred eleven thousand, one hundred nine".