27913916666 has 8 divisors (see below), whose sum is σ = 44333867700. Its totient is φ = 13135960768.

The previous prime is 27913916663. The next prime is 27913916677. The reversal of 27913916666 is 66661931972.

It can be written as a sum of positive squares in 2 ways, for example, as 27461461225 + 452455441 = 165715^2 + 21271^2 .

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

It is not an unprimeable number, because it can be changed into a prime (27913916663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410498741 + ... + 410498808.

Almost surely, 2^27913916666 is an apocalyptic number.

27913916666 is a deficient number, since it is larger than the sum of its proper divisors (16419951034).

27913916666 is a wasteful number, since it uses less digits than its factorization.

27913916666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820997568.

The product of its digits is 4408992, while the sum is 56.

The spelling of 27913916666 in words is "twenty-seven billion, nine hundred thirteen million, nine hundred sixteen thousand, six hundred sixty-six".