11101996815817 has 2 divisors, whose sum is σ = 11101996815818. Its totient is φ = 11101996815816.

The previous prime is 11101996815773. The next prime is 11101996815829. The reversal of 11101996815817 is 71851869910111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11097133287696 + 4863528121 = 3331236^2 + 69739^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101996815817 - 2¹¹ = 11101996813769 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101996812817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550998407908 + 5550998407909.

It is an arithmetic number, because the mean of its divisors is an integer number (5550998407909).

Almost surely, 2^{11101996815817} is an apocalyptic number.

It is an amenable number.

11101996815817 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101996815817 is an equidigital number, since it uses as much as digits as its factorization.

11101996815817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 58.

The spelling of 11101996815817 in words is "eleven trillion, one hundred one billion, nine hundred ninety-six million, eight hundred fifteen thousand, eight hundred seventeen".