5561605611 has 8 divisors (see below), whose sum is σ = 8239415760. Its totient is φ = 3707737056.

The previous prime is 5561605547. The next prime is 5561605627. The reversal of 5561605611 is 1165061655.

It is not a de Polignac number, because 5561605611 - 2⁶ = 5561605547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5561603611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102992670 + ... + 102992723.

It is an arithmetic number, because the mean of its divisors is an integer number (1029926970).

Almost surely, 2^5561605611 is an apocalyptic number.

5561605611 is a deficient number, since it is larger than the sum of its proper divisors (2677810149).

5561605611 is a wasteful number, since it uses less digits than its factorization.

5561605611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205985402 (or 205985396 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 5561605611 is about 74576.1732123605. The cubic root of 5561605611 is about 1771.7402963916.

The spelling of 5561605611 in words is "five billion, five hundred sixty-one million, six hundred five thousand, six hundred eleven".