27600091066 has 4 divisors (see below), whose sum is σ = 41400136602. Its totient is φ = 13800045532.

The previous prime is 27600091007. The next prime is 27600091093. The reversal of 27600091066 is 66019000672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20172236841 + 7427854225 = 142029^2 + 86185^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6900022765 + ... + 6900022768.

Almost surely, 2^27600091066 is an apocalyptic number.

27600091066 is a deficient number, since it is larger than the sum of its proper divisors (13800045536).

27600091066 is a wasteful number, since it uses less digits than its factorization.

27600091066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13800045535.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 27600091066 in words is "twenty-seven billion, six hundred million, ninety-one thousand, sixty-six".