1116144188661 has 32 divisors (see below), whose sum is σ = 1548579086208. Its totient is φ = 714480134400.

The previous prime is 1116144188651. The next prime is 1116144188701. The reversal of 1116144188661 is 1668814416111.

It is not a de Polignac number, because 1116144188661 - 2²¹ = 1116142091509 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1116144188661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116144188641) 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 in 31 ways as a sum of consecutive naturals, for example, 3279631 + ... + 3603923.

It is an arithmetic number, because the mean of its divisors is an integer number (48393096444).

Almost surely, 2^{1116144188661} is an apocalyptic number.

It is an amenable number.

1116144188661 is a deficient number, since it is larger than the sum of its proper divisors (432434897547).

1116144188661 is a wasteful number, since it uses less digits than its factorization.

1116144188661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324741.

The product of its digits is 221184, while the sum is 48.

The spelling of 1116144188661 in words is "one trillion, one hundred sixteen billion, one hundred forty-four million, one hundred eighty-eight thousand, six hundred sixty-one".