255564623115611 has 2 divisors, whose sum is σ = 255564623115612. Its totient is φ = 255564623115610.

The previous prime is 255564623115577. The next prime is 255564623115647. The reversal of 255564623115611 is 116511326465552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255564623115611 - 2⁶ = 255564623115547 is a prime.

It is not a weakly prime, because it can be changed into another prime (255564623115211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127782311557805 + 127782311557806.

It is an arithmetic number, because the mean of its divisors is an integer number (127782311557806).

Almost surely, 2^{255564623115611} is an apocalyptic number.

255564623115611 is a deficient number, since it is larger than the sum of its proper divisors (1).

255564623115611 is an equidigital number, since it uses as much as digits as its factorization.

255564623115611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480000, while the sum is 53.

The spelling of 255564623115611 in words is "two hundred fifty-five trillion, five hundred sixty-four billion, six hundred twenty-three million, one hundred fifteen thousand, six hundred eleven".