27165854649611 has 2 divisors, whose sum is σ = 27165854649612. Its totient is φ = 27165854649610.

The previous prime is 27165854649553. The next prime is 27165854649629. The reversal of 27165854649611 is 11694645856172.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27165854649611 - 2¹⁰ = 27165854648587 is a prime.

It is not a weakly prime, because it can be changed into another prime (27165854649631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13582927324805 + 13582927324806.

It is an arithmetic number, because the mean of its divisors is an integer number (13582927324806).

Almost surely, 2^{27165854649611} is an apocalyptic number.

27165854649611 is a deficient number, since it is larger than the sum of its proper divisors (1).

27165854649611 is an equidigital number, since it uses as much as digits as its factorization.

27165854649611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87091200, while the sum is 65.

The spelling of 27165854649611 in words is "twenty-seven trillion, one hundred sixty-five billion, eight hundred fifty-four million, six hundred forty-nine thousand, six hundred eleven".