116138888866 has 64 divisors (see below), whose sum is σ = 239607196416. Its totient is φ = 40749465600.

The previous prime is 116138888863. The next prime is 116138888897. The reversal of 116138888866 is 668888831611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 116138888798 and 116138888807.

It is not an unprimeable number, because it can be changed into a prime (116138888863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 625375 + ... + 789538.

It is an arithmetic number, because the mean of its divisors is an integer number (3743862444).

Almost surely, 2^116138888866 is an apocalyptic number.

116138888866 is an abundant number, since it is smaller than the sum of its proper divisors (123468307550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116138888866 is a wasteful number, since it uses less digits than its factorization.

116138888866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414987.

The product of its digits is 21233664, while the sum is 64.

The spelling of 116138888866 in words is "one hundred sixteen billion, one hundred thirty-eight million, eight hundred eighty-eight thousand, eight hundred sixty-six".