4418966698121 has 2 divisors, whose sum is σ = 4418966698122. Its totient is φ = 4418966698120.

The previous prime is 4418966698099. The next prime is 4418966698169. The reversal of 4418966698121 is 1218966698144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3639567295225 + 779399402896 = 1907765^2 + 882836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4418966698121 is a prime.

It is not a weakly prime, because it can be changed into another prime (4418966698721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2209483349060 + 2209483349061.

It is an arithmetic number, because the mean of its divisors is an integer number (2209483349061).

Almost surely, 2^{4418966698121} is an apocalyptic number.

It is an amenable number.

4418966698121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4418966698121 is an equidigital number, since it uses as much as digits as its factorization.

4418966698121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35831808, while the sum is 65.

The spelling of 4418966698121 in words is "four trillion, four hundred eighteen billion, nine hundred sixty-six million, six hundred ninety-eight thousand, one hundred twenty-one".