116661199911 has 16 divisors (see below), whose sum is σ = 161547256800. Its totient is φ = 74821874688.

The previous prime is 116661199901. The next prime is 116661199939. The reversal of 116661199911 is 119991166611.

It is not a de Polignac number, because 116661199911 - 2¹⁰ = 116661198887 is a prime.

116661199911 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116661199901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5894626 + ... + 5914383.

It is an arithmetic number, because the mean of its divisors is an integer number (10096703550).

Almost surely, 2^116661199911 is an apocalyptic number.

116661199911 is a deficient number, since it is larger than the sum of its proper divisors (44886056889).

116661199911 is a wasteful number, since it uses less digits than its factorization.

116661199911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11809138.

The product of its digits is 157464, while the sum is 51.

The spelling of 116661199911 in words is "one hundred sixteen billion, six hundred sixty-one million, one hundred ninety-nine thousand, nine hundred eleven".