116665806920 has 128 divisors (see below), whose sum is σ = 288739987200. Its totient is φ = 42158797824.

The previous prime is 116665806877. The next prime is 116665806923. The reversal of 116665806920 is 29608566611.

It is a happy number.

116665806920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×116665806920² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (116665806923) 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 31 ways as a sum of consecutive naturals, for example, 11542589 + ... + 11552691.

It is an arithmetic number, because the mean of its divisors is an integer number (2255781150).

Almost surely, 2^116665806920 is an apocalyptic number.

116665806920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116665806920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144369993600).

116665806920 is an abundant number, since it is smaller than the sum of its proper divisors (172074180280).

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

116665806920 is a wasteful number, since it uses less digits than its factorization.

116665806920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599 (or 10595 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 116665806920 in words is "one hundred sixteen billion, six hundred sixty-five million, eight hundred six thousand, nine hundred twenty".