1115564655111 has 32 divisors (see below), whose sum is σ = 1531374248448. Its totient is φ = 722058986880.

The previous prime is 1115564655109. The next prime is 1115564655113.

1115564655111 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (1115564655109) and next prime (1115564655113).

It is not a de Polignac number, because 1115564655111 - 2¹ = 1115564655109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115564655113) 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 31 ways as a sum of consecutive naturals, for example, 51892881 + ... + 51914373.

It is an arithmetic number, because the mean of its divisors is an integer number (47855445264).

Almost surely, 2^{1115564655111} is an apocalyptic number.

1115564655111 is a deficient number, since it is larger than the sum of its proper divisors (415809593337).

1115564655111 is a wasteful number, since it uses less digits than its factorization.

1115564655111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25271.

The product of its digits is 90000, while the sum is 42.

The spelling of 1115564655111 in words is "one trillion, one hundred fifteen billion, five hundred sixty-four million, six hundred fifty-five thousand, one hundred eleven".