5566616555 has 8 divisors (see below), whose sum is σ = 6910282800. Its totient is φ = 4299731296.

The previous prime is 5566616537. The next prime is 5566616567. The reversal of 5566616555 is 5556166655.

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 5566616555 - 2³⁰ = 4492874731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19195085 + ... + 19195374.

It is an arithmetic number, because the mean of its divisors is an integer number (863785350).

Almost surely, 2^5566616555 is an apocalyptic number.

5566616555 is a deficient number, since it is larger than the sum of its proper divisors (1343666245).

5566616555 is a wasteful number, since it uses less digits than its factorization.

5566616555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38390493.

The product of its digits is 4050000, while the sum is 50.

The square root of 5566616555 is about 74609.7617942853. The cubic root of 5566616555 is about 1772.2722426801.

The spelling of 5566616555 in words is "five billion, five hundred sixty-six million, six hundred sixteen thousand, five hundred fifty-five".