116643779842 has 16 divisors (see below), whose sum is σ = 175418115840. Its totient is φ = 58171196592.

The previous prime is 116643779839. The next prime is 116643779891. The reversal of 116643779842 is 248977346611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966288 + ... + 2024740.

It is an arithmetic number, because the mean of its divisors is an integer number (10963632240).

Almost surely, 2^116643779842 is an apocalyptic number.

116643779842 is a deficient number, since it is larger than the sum of its proper divisors (58774335998).

116643779842 is a wasteful number, since it uses less digits than its factorization.

116643779842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61017.

The product of its digits is 12192768, while the sum is 58.

The spelling of 116643779842 in words is "one hundred sixteen billion, six hundred forty-three million, seven hundred seventy-nine thousand, eight hundred forty-two".