5566611660 has 24 divisors (see below), whose sum is σ = 15586512816. Its totient is φ = 1484429760.

The previous prime is 5566611643. The next prime is 5566611679. The reversal of 5566611660 is 661166655.

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, 46388371 + ... + 46388490.

It is an arithmetic number, because the mean of its divisors is an integer number (649438034).

Almost surely, 2^5566611660 is an apocalyptic number.

It is an amenable number.

5566611660 is an abundant number, since it is smaller than the sum of its proper divisors (10019901156).

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

5566611660 is a wasteful number, since it uses less digits than its factorization.

5566611660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92776873 (or 92776871 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 5566611660 is about 74609.7289902597. The cubic root of 5566611660 is about 1772.2717231979.

The spelling of 5566611660 in words is "five billion, five hundred sixty-six million, six hundred eleven thousand, six hundred sixty".