20116707667243 has 4 divisors (see below), whose sum is σ = 21945499273368. Its totient is φ = 18287916061120.

The previous prime is 20116707667223. The next prime is 20116707667247. The reversal of 20116707667243 is 34276670761102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20116707667243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20116707667247) 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, 914395803046 + ... + 914395803067.

It is an arithmetic number, because the mean of its divisors is an integer number (5486374818342).

Almost surely, 2^{20116707667243} is an apocalyptic number.

20116707667243 is a deficient number, since it is larger than the sum of its proper divisors (1828791606125).

20116707667243 is a wasteful number, since it uses less digits than its factorization.

20116707667243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828791606124.

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 20116707667243 in words is "twenty trillion, one hundred sixteen billion, seven hundred seven million, six hundred sixty-seven thousand, two hundred forty-three".