27130056666 has 8 divisors (see below), whose sum is σ = 54260113344. Its totient is φ = 9043352220.

The previous prime is 27130056641. The next prime is 27130056683. The reversal of 27130056666 is 66665003172.

It is a sphenic number, since it is the product of 3 distinct primes.

27130056666 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260838050 + ... + 2260838061.

It is an arithmetic number, because the mean of its divisors is an integer number (6782514168).

Almost surely, 2^27130056666 is an apocalyptic number.

27130056666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27130056666 is a wasteful number, since it uses less digits than its factorization.

27130056666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521676116.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 27130056666 in words is "twenty-seven billion, one hundred thirty million, fifty-six thousand, six hundred sixty-six".