116208368639 has 4 divisors (see below), whose sum is σ = 126772765800. Its totient is φ = 105643971480.

The previous prime is 116208368629. The next prime is 116208368657. The reversal of 116208368639 is 936863802611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116208368639 - 2¹² = 116208364543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116208368609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5282198564 + ... + 5282198585.

It is an arithmetic number, because the mean of its divisors is an integer number (31693191450).

Almost surely, 2^116208368639 is an apocalyptic number.

116208368639 is a deficient number, since it is larger than the sum of its proper divisors (10564397161).

116208368639 is a wasteful number, since it uses less digits than its factorization.

116208368639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10564397160.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 116208368639 in words is "one hundred sixteen billion, two hundred eight million, three hundred sixty-eight thousand, six hundred thirty-nine".