11099967555557 has 2 divisors, whose sum is σ = 11099967555558. Its totient is φ = 11099967555556.

The previous prime is 11099967555511. The next prime is 11099967555563. The reversal of 11099967555557 is 75555576999011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9740397563521 + 1359569992036 = 3120961^2 + 1166006^2 .

It is a cyclic number.

It is not a de Polignac number, because 11099967555557 - 2¹⁴ = 11099967539173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11099967557557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5549983777778 + 5549983777779.

It is an arithmetic number, because the mean of its divisors is an integer number (5549983777779).

Almost surely, 2^{11099967555557} is an apocalyptic number.

It is an amenable number.

11099967555557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11099967555557 is an equidigital number, since it uses as much as digits as its factorization.

11099967555557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 669768750, while the sum is 74.

The spelling of 11099967555557 in words is "eleven trillion, ninety-nine billion, nine hundred sixty-seven million, five hundred fifty-five thousand, five hundred fifty-seven".