5575666566 has 32 divisors (see below), whose sum is σ = 11290158720. Its totient is φ = 1835535744.

The previous prime is 5575666553. The next prime is 5575666583. The reversal of 5575666566 is 6656665755.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177345 + ... + 206403.

It is an arithmetic number, because the mean of its divisors is an integer number (352817460).

Almost surely, 2^5575666566 is an apocalyptic number.

5575666566 is an abundant number, since it is smaller than the sum of its proper divisors (5714492154).

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

5575666566 is a wasteful number, since it uses less digits than its factorization.

5575666566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29460.

The product of its digits is 34020000, while the sum is 57.

The square root of 5575666566 is about 74670.3861380132. The cubic root of 5575666566 is about 1773.2321554654.

The spelling of 5575666566 in words is "five billion, five hundred seventy-five million, six hundred sixty-six thousand, five hundred sixty-six".