5561728956167 has 2 divisors, whose sum is σ = 5561728956168. Its totient is φ = 5561728956166.

The previous prime is 5561728956073. The next prime is 5561728956169. The reversal of 5561728956167 is 7616598271655.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561728956167 is a prime.

Together with 5561728956169, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5561728956097 and 5561728956106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5561728956169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780864478083 + 2780864478084.

It is an arithmetic number, because the mean of its divisors is an integer number (2780864478084).

Almost surely, 2^{5561728956167} is an apocalyptic number.

5561728956167 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561728956167 is an equidigital number, since it uses as much as digits as its factorization.

5561728956167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512000, while the sum is 68.

The spelling of 5561728956167 in words is "five trillion, five hundred sixty-one billion, seven hundred twenty-eight million, nine hundred fifty-six thousand, one hundred sixty-seven".