27663667055 has 12 divisors (see below), whose sum is σ = 33420824472. Its totient is φ = 21982315680.

The previous prime is 27663667007. The next prime is 27663667081. The reversal of 27663667055 is 55076636672.

It is not a de Polignac number, because 27663667055 - 2¹⁶ = 27663601519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27663666988 and 27663667006.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 13601 + ... + 235610.

It is an arithmetic number, because the mean of its divisors is an integer number (2785068706).

Almost surely, 2^27663667055 is an apocalyptic number.

27663667055 is a deficient number, since it is larger than the sum of its proper divisors (5757157417).

27663667055 is an equidigital number, since it uses as much as digits as its factorization.

27663667055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249514 (or 249365 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 53.

The spelling of 27663667055 in words is "twenty-seven billion, six hundred sixty-three million, six hundred sixty-seven thousand, fifty-five".