27661168 has 10 divisors (see below), whose sum is σ = 53593544. Its totient is φ = 13830576.

The previous prime is 27661141. The next prime is 27661171. The reversal of 27661168 is 86116672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864396 + ... + 864427.

Almost surely, 2^27661168 is an apocalyptic number.

It is an amenable number.

27661168 is a deficient number, since it is larger than the sum of its proper divisors (25932376).

27661168 is a wasteful number, since it uses less digits than its factorization.

27661168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728831 (or 1728825 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 27661168 is about 5259.3885576177. The cubic root of 27661168 is about 302.4290496808.

The spelling of 27661168 in words is "twenty-seven million, six hundred sixty-one thousand, one hundred sixty-eight".