27066111641 has 4 divisors (see below), whose sum is σ = 27139861632. Its totient is φ = 26992361652.

The previous prime is 27066111637. The next prime is 27066111643. The reversal of 27066111641 is 14611166072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27066111641 - 2² = 27066111637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27066111643) 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, 36874445 + ... + 36875178.

It is an arithmetic number, because the mean of its divisors is an integer number (6784965408).

Almost surely, 2^27066111641 is an apocalyptic number.

It is an amenable number.

27066111641 is a deficient number, since it is larger than the sum of its proper divisors (73749991).

27066111641 is an equidigital number, since it uses as much as digits as its factorization.

27066111641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73749990.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 27066111641 in words is "twenty-seven billion, sixty-six million, one hundred eleven thousand, six hundred forty-one".