11115669356289 has 9 divisors (see below), whose sum is σ = 16055981295393. Its totient is φ = 7410439569492.

The previous prime is 11115669356279. The next prime is 11115669356293. The reversal of 11115669356289 is 98265396651111.

The square root of 11115669356289 is 3334017.

It is a perfect power (a square), and thus also a powerful number.

11115669356289 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 5 + 6 + 69 + 3 + 562 + 8 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 11115669356289 - 2²³ = 11115660967681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11115669356279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9446382 + ... + 10557720.

Almost surely, 2^{11115669356289} is an apocalyptic number.

11115669356289 is the 3334017-th square number.

11115669356289 is the 1667009-th centered octagonal number.

It is an amenable number.

11115669356289 is a deficient number, since it is larger than the sum of its proper divisors (4940311939104).

11115669356289 is an frugal number, since it uses more digits than its factorization.

11115669356289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222684 (or 1111342 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 63.

The spelling of 11115669356289 in words is "eleven trillion, one hundred fifteen billion, six hundred sixty-nine million, three hundred fifty-six thousand, two hundred eighty-nine".