5051561115611 has 2 divisors, whose sum is σ = 5051561115612. Its totient is φ = 5051561115610.

The previous prime is 5051561115593. The next prime is 5051561115631. The reversal of 5051561115611 is 1165111651505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5051561115611 - 2⁶ = 5051561115547 is a prime.

It is not a weakly prime, because it can be changed into another prime (5051561115631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525780557805 + 2525780557806.

It is an arithmetic number, because the mean of its divisors is an integer number (2525780557806).

Almost surely, 2^{5051561115611} is an apocalyptic number.

5051561115611 is a deficient number, since it is larger than the sum of its proper divisors (1).

5051561115611 is an equidigital number, since it uses as much as digits as its factorization.

5051561115611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22500, while the sum is 38.

The spelling of 5051561115611 in words is "five trillion, fifty-one billion, five hundred sixty-one million, one hundred fifteen thousand, six hundred eleven".