11100899569 has 2 divisors, whose sum is σ = 11100899570. Its totient is φ = 11100899568.

The previous prime is 11100899539. The next prime is 11100899573. The reversal of 11100899569 is 96599800111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10324998544 + 775901025 = 101612^2 + 27855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100899569 is a prime.

It is a super-2 number, since 2×11100899569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11100899539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550449784 + 5550449785.

It is an arithmetic number, because the mean of its divisors is an integer number (5550449785).

Almost surely, 2^11100899569 is an apocalyptic number.

It is an amenable number.

11100899569 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100899569 is an equidigital number, since it uses as much as digits as its factorization.

11100899569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 49.

The spelling of 11100899569 in words is "eleven billion, one hundred million, eight hundred ninety-nine thousand, five hundred sixty-nine".