116806821986 has 8 divisors (see below), whose sum is σ = 175212373440. Its totient is φ = 58402697508.

The previous prime is 116806821983. The next prime is 116806822007. The reversal of 116806821986 is 689128608611.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (116806821983) 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 3 ways as a sum of consecutive naturals, for example, 120926 + ... + 498233.

It is an arithmetic number, because the mean of its divisors is an integer number (21901546680).

Almost surely, 2^116806821986 is an apocalyptic number.

116806821986 is a deficient number, since it is larger than the sum of its proper divisors (58405551454).

116806821986 is an equidigital number, since it uses as much as digits as its factorization.

116806821986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713488.

The product of its (nonzero) digits is 1990656, while the sum is 56.

The spelling of 116806821986 in words is "one hundred sixteen billion, eight hundred six million, eight hundred twenty-one thousand, nine hundred eighty-six".