11125664416109 has 2 divisors, whose sum is σ = 11125664416110. Its totient is φ = 11125664416108.

The previous prime is 11125664416099. The next prime is 11125664416157. The reversal of 11125664416109 is 90161446652111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6118152780100 + 5007511636009 = 2473490^2 + 2237747^2 .

It is an emirp because it is prime and its reverse (90161446652111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11125664416109 - 2¹² = 11125664412013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11125664416409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5562832208054 + 5562832208055.

It is an arithmetic number, because the mean of its divisors is an integer number (5562832208055).

Almost surely, 2^{11125664416109} is an apocalyptic number.

It is an amenable number.

11125664416109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11125664416109 is an equidigital number, since it uses as much as digits as its factorization.

11125664416109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 11125664416109 in words is "eleven trillion, one hundred twenty-five billion, six hundred sixty-four million, four hundred sixteen thousand, one hundred nine".