20116713201605 has 8 divisors (see below), whose sum is σ = 24480056628864. Its totient is φ = 15866703370000.

The previous prime is 20116713201581. The next prime is 20116713201631. The reversal of 20116713201605 is 50610231761102.

It is a happy number.

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

It is not a de Polignac number, because 20116713201605 - 2¹⁰ = 20116713200581 is a prime.

It is a Curzon number.

It is a congruent 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, 28333398521 + ... + 28333399230.

It is an arithmetic number, because the mean of its divisors is an integer number (3060007078608).

Almost surely, 2^{20116713201605} is an apocalyptic number.

It is an amenable number.

20116713201605 is a deficient number, since it is larger than the sum of its proper divisors (4363343427259).

20116713201605 is an equidigital number, since it uses as much as digits as its factorization.

20116713201605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56666797827.

The product of its (nonzero) digits is 15120, while the sum is 35.

Adding to 20116713201605 its reverse (50610231761102), we get a palindrome (70726944962707).

The spelling of 20116713201605 in words is "twenty trillion, one hundred sixteen billion, seven hundred thirteen million, two hundred one thousand, six hundred five".