116191885921 has 12 divisors (see below), whose sum is σ = 121876066368. Its totient is φ = 110563394304.

The previous prime is 116191885907. The next prime is 116191885933. The reversal of 116191885921 is 129588191611.

It is not a de Polignac number, because 116191885921 - 2⁹ = 116191885409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116191888921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788916 + ... + 924538.

It is an arithmetic number, because the mean of its divisors is an integer number (10156338864).

Almost surely, 2^116191885921 is an apocalyptic number.

It is an amenable number.

116191885921 is a deficient number, since it is larger than the sum of its proper divisors (5684180447).

116191885921 is an equidigital number, since it uses as much as digits as its factorization.

116191885921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136032 (or 135839 counting only the distinct ones).

The product of its digits is 311040, while the sum is 52.

The spelling of 116191885921 in words is "one hundred sixteen billion, one hundred ninety-one million, eight hundred eighty-five thousand, nine hundred twenty-one".