27312243066 has 56 divisors (see below), whose sum is σ = 62465736960. Its totient is φ = 8949746376.

The previous prime is 27312243059. The next prime is 27312243071. The reversal of 27312243066 is 66034221372.

It is a self number, because there is not a number n which added to its sum of digits gives 27312243066.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 72730 + ... + 244773.

Almost surely, 2^27312243066 is an apocalyptic number.

27312243066 is an abundant number, since it is smaller than the sum of its proper divisors (35153493894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27312243066 is an equidigital number, since it uses as much as digits as its factorization.

27312243066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317582 (or 317567 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 27312243066 in words is "twenty-seven billion, three hundred twelve million, two hundred forty-three thousand, sixty-six".