6661116101111 has 8 divisors (see below), whose sum is σ = 6890892808800. Its totient is φ = 6431344930080.

The previous prime is 6661116101063. The next prime is 6661116101117. The reversal of 6661116101111 is 1111016111666.

6661116101111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6661116101111 - 2²² = 6661111906807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661116101117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141670 + ... + 3824348.

It is an arithmetic number, because the mean of its divisors is an integer number (861361601100).

Almost surely, 2^{6661116101111} is an apocalyptic number.

6661116101111 is a deficient number, since it is larger than the sum of its proper divisors (229776707689).

6661116101111 is a wasteful number, since it uses less digits than its factorization.

6661116101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768329.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 6661116101111 in words is "six trillion, six hundred sixty-one billion, one hundred sixteen million, one hundred one thousand, one hundred eleven".