20117886706 has 16 divisors (see below), whose sum is σ = 30266019360. Its totient is φ = 10029254560.

The previous prime is 20117886703. The next prime is 20117886709. The reversal of 20117886706 is 60768871102.

It is an interprime number because it is at equal distance from previous prime (20117886703) and next prime (20117886709).

It is not an unprimeable number, because it can be changed into a prime (20117886703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052325 + ... + 1071271.

It is an arithmetic number, because the mean of its divisors is an integer number (1891626210).

Almost surely, 2^20117886706 is an apocalyptic number.

20117886706 is a deficient number, since it is larger than the sum of its proper divisors (10148132654).

20117886706 is a wasteful number, since it uses less digits than its factorization.

20117886706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20489.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 20117886706 in words is "twenty billion, one hundred seventeen million, eight hundred eighty-six thousand, seven hundred six".