19466618011 has 2 divisors, whose sum is σ = 19466618012. Its totient is φ = 19466618010.

The previous prime is 19466617993. The next prime is 19466618027. The reversal of 19466618011 is 11081666491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19466618011 is a prime.

It is a super-2 number, since 2×19466618011² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19466618711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9733309005 + 9733309006.

It is an arithmetic number, because the mean of its divisors is an integer number (9733309006).

Almost surely, 2^19466618011 is an apocalyptic number.

19466618011 is a deficient number, since it is larger than the sum of its proper divisors (1).

19466618011 is an equidigital number, since it uses as much as digits as its factorization.

19466618011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 19466618011 in words is "nineteen billion, four hundred sixty-six million, six hundred eighteen thousand, eleven".