27162660617 has 2 divisors, whose sum is σ = 27162660618. Its totient is φ = 27162660616.

The previous prime is 27162660611. The next prime is 27162660641. The reversal of 27162660617 is 71606626172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20499366976 + 6663293641 = 143176^2 + 81629^2 .

It is a cyclic number.

It is not a de Polignac number, because 27162660617 - 2¹⁰ = 27162659593 is a prime.

It is not a weakly prime, because it can be changed into another prime (27162660611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13581330308 + 13581330309.

It is an arithmetic number, because the mean of its divisors is an integer number (13581330309).

Almost surely, 2^27162660617 is an apocalyptic number.

It is an amenable number.

27162660617 is a deficient number, since it is larger than the sum of its proper divisors (1).

27162660617 is an equidigital number, since it uses as much as digits as its factorization.

27162660617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 27162660617 in words is "twenty-seven billion, one hundred sixty-two million, six hundred sixty thousand, six hundred seventeen".