20116116122506 has 8 divisors (see below), whose sum is σ = 30743498225124. Its totient is φ = 9868283380800.

The previous prime is 20116116122503. The next prime is 20116116122563. The reversal of 20116116122506 is 60522161161102.

It can be written as a sum of positive squares in 2 ways, for example, as 19946862048481 + 169254074025 = 4466191^2 + 411405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20116116122503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94887340095 + ... + 94887340306.

Almost surely, 2^{20116116122506} is an apocalyptic number.

20116116122506 is a deficient number, since it is larger than the sum of its proper divisors (10627382102618).

20116116122506 is a wasteful number, since it uses less digits than its factorization.

20116116122506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189774680456.

The product of its (nonzero) digits is 8640, while the sum is 34.

Adding to 20116116122506 its reverse (60522161161102), we get a palindrome (80638277283608).

The spelling of 20116116122506 in words is "twenty trillion, one hundred sixteen billion, one hundred sixteen million, one hundred twenty-two thousand, five hundred six".