27061440066 has 16 divisors (see below), whose sum is σ = 60136533600. Its totient is φ = 9020480004.

The previous prime is 27061440059. The next prime is 27061440071. The reversal of 27061440066 is 66004416072.

It is a self number, because there is not a number n which added to its sum of digits gives 27061440066.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250568836 + ... + 250568943.

It is an arithmetic number, because the mean of its divisors is an integer number (3758533350).

Almost surely, 2^27061440066 is an apocalyptic number.

27061440066 is an abundant number, since it is smaller than the sum of its proper divisors (33075093534).

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

27061440066 is a wasteful number, since it uses less digits than its factorization.

27061440066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501137790 (or 501137784 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 27061440066 in words is "twenty-seven billion, sixty-one million, four hundred forty thousand, sixty-six".