11199999998959 has 2 divisors, whose sum is σ = 11199999998960. Its totient is φ = 11199999998958.

The previous prime is 11199999998953. The next prime is 11199999998977. The reversal of 11199999998959 is 95989999999111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11199999998959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11199999998953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599999999479 + 5599999999480.

It is an arithmetic number, because the mean of its divisors is an integer number (5599999999480).

Almost surely, 2^{11199999998959} is an apocalyptic number.

11199999998959 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199999998959 is an equidigital number, since it uses as much as digits as its factorization.

11199999998959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15496819560, while the sum is 97.

The spelling of 11199999998959 in words is "eleven trillion, one hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-eight thousand, nine hundred fifty-nine".