55116006561611 has 2 divisors, whose sum is σ = 55116006561612. Its totient is φ = 55116006561610.

The previous prime is 55116006561541. The next prime is 55116006561613. The reversal of 55116006561611 is 11616560061155.

55116006561611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55116006561611 - 2¹⁴ = 55116006545227 is a prime.

Together with 55116006561613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55116006561613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27558003280805 + 27558003280806.

It is an arithmetic number, because the mean of its divisors is an integer number (27558003280806).

Almost surely, 2^{55116006561611} is an apocalyptic number.

55116006561611 is a deficient number, since it is larger than the sum of its proper divisors (1).

55116006561611 is an equidigital number, since it uses as much as digits as its factorization.

55116006561611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 55116006561611 in words is "fifty-five trillion, one hundred sixteen billion, six million, five hundred sixty-one thousand, six hundred eleven".