1115644222089 has 12 divisors (see below), whose sum is σ = 1611681940596. Its totient is φ = 743672426112.

The previous prime is 1115644222067. The next prime is 1115644222109. The reversal of 1115644222089 is 9802224465111.

1115644222089 is a `hidden beast` number, since 1 + 1 + 1 + 564 + 4 + 2 + 2 + 2 + 0 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 563112166464 + 552532055625 = 750408^2 + 743325^2 .

It is not a de Polignac number, because 1115644222089 - 2²⁹ = 1115107351177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1115644222009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7454172 + ... + 7602365.

It is an arithmetic number, because the mean of its divisors is an integer number (134306828383).

Almost surely, 2^{1115644222089} is an apocalyptic number.

It is an amenable number.

1115644222089 is a deficient number, since it is larger than the sum of its proper divisors (496037718507).

1115644222089 is a wasteful number, since it uses less digits than its factorization.

1115644222089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15064776 (or 15064773 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 1115644222089 in words is "one trillion, one hundred fifteen billion, six hundred forty-four million, two hundred twenty-two thousand, eighty-nine".