9115840611001 has 2 divisors, whose sum is σ = 9115840611002. Its totient is φ = 9115840611000.

The previous prime is 9115840610993. The next prime is 9115840611011. The reversal of 9115840611001 is 1001160485119.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5901493631401 + 3214346979600 = 2429299^2 + 1792860^2 .

It is an emirp because it is prime and its reverse (1001160485119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9115840611001 - 2³ = 9115840610993 is a prime.

It is not a weakly prime, because it can be changed into another prime (9115840611011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4557920305500 + 4557920305501.

It is an arithmetic number, because the mean of its divisors is an integer number (4557920305501).

Almost surely, 2^{9115840611001} is an apocalyptic number.

It is an amenable number.

9115840611001 is a deficient number, since it is larger than the sum of its proper divisors (1).

9115840611001 is an equidigital number, since it uses as much as digits as its factorization.

9115840611001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 37.

The spelling of 9115840611001 in words is "nine trillion, one hundred fifteen billion, eight hundred forty million, six hundred eleven thousand, one".