27706555655 has 8 divisors (see below), whose sum is σ = 33330781584. Its totient is φ = 22109968000.

The previous prime is 27706555651. The next prime is 27706555661. The reversal of 27706555655 is 55655560772.

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

It is not a de Polignac number, because 27706555655 - 2² = 27706555651 is a prime.

It is a super-2 number, since 2×27706555655² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27706555597 and 27706555606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27706555651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6907361 + ... + 6911370.

It is an arithmetic number, because the mean of its divisors is an integer number (4166347698).

Almost surely, 2^27706555655 is an apocalyptic number.

27706555655 is a deficient number, since it is larger than the sum of its proper divisors (5624225929).

27706555655 is a wasteful number, since it uses less digits than its factorization.

27706555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13819137.

The product of its (nonzero) digits is 11025000, while the sum is 53.

The spelling of 27706555655 in words is "twenty-seven billion, seven hundred six million, five hundred fifty-five thousand, six hundred fifty-five".