5566566665600 has 48 divisors (see below), whose sum is σ = 13751159224020. Its totient is φ = 2226626664960.

The previous prime is 5566566665591. The next prime is 5566566665719. The reversal of 5566566665600 is 65666656655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 869772842 + ... + 869779241.

Almost surely, 2^{5566566665600} is an apocalyptic number.

5566566665600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5566566665600 is an abundant number, since it is smaller than the sum of its proper divisors (8184592558420).

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

5566566665600 is a wasteful number, since it uses less digits than its factorization.

5566566665600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739552107 (or 1739552090 counting only the distinct ones).

The product of its (nonzero) digits is 174960000, while the sum is 62.

The spelling of 5566566665600 in words is "five trillion, five hundred sixty-six billion, five hundred sixty-six million, six hundred sixty-five thousand, six hundred".