18226713555667 has 2 divisors, whose sum is σ = 18226713555668. Its totient is φ = 18226713555666.

The previous prime is 18226713555653. The next prime is 18226713555697. The reversal of 18226713555667 is 76655531762281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18226713555667 - 2⁷ = 18226713555539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18226713555599 and 18226713555608.

It is not a weakly prime, because it can be changed into another prime (18226713555697) 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, 9113356777833 + 9113356777834.

It is an arithmetic number, because the mean of its divisors is an integer number (9113356777834).

Almost surely, 2^{18226713555667} is an apocalyptic number.

18226713555667 is a deficient number, since it is larger than the sum of its proper divisors (1).

18226713555667 is an equidigital number, since it uses as much as digits as its factorization.

18226713555667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008000, while the sum is 64.

The spelling of 18226713555667 in words is "eighteen trillion, two hundred twenty-six billion, seven hundred thirteen million, five hundred fifty-five thousand, six hundred sixty-seven".