55560605611111 has 2 divisors, whose sum is σ = 55560605611112. Its totient is φ = 55560605611110.

The previous prime is 55560605611109. The next prime is 55560605611139. The reversal of 55560605611111 is 11111650606555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55560605611111 - 2¹ = 55560605611109 is a prime.

Together with 55560605611109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55560605611411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27780302805555 + 27780302805556.

It is an arithmetic number, because the mean of its divisors is an integer number (27780302805556).

Almost surely, 2^{55560605611111} is an apocalyptic number.

55560605611111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55560605611111 is an equidigital number, since it uses as much as digits as its factorization.

55560605611111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 55560605611111 in words is "fifty-five trillion, five hundred sixty billion, six hundred five million, six hundred eleven thousand, one hundred eleven".