27660806141 has 2 divisors, whose sum is σ = 27660806142. Its totient is φ = 27660806140.

The previous prime is 27660806101. The next prime is 27660806143. The reversal of 27660806141 is 14160806672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27262963225 + 397842916 = 165115^2 + 19946^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27660806141 is a prime.

Together with 27660806143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27660806143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13830403070 + 13830403071.

It is an arithmetic number, because the mean of its divisors is an integer number (13830403071).

Almost surely, 2^27660806141 is an apocalyptic number.

It is an amenable number.

27660806141 is a deficient number, since it is larger than the sum of its proper divisors (1).

27660806141 is an equidigital number, since it uses as much as digits as its factorization.

27660806141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 27660806141 in words is "twenty-seven billion, six hundred sixty million, eight hundred six thousand, one hundred forty-one".