20461056320317 has 8 divisors (see below), whose sum is σ = 20581292578392. Its totient is φ = 20340899092800.

The previous prime is 20461056320281. The next prime is 20461056320323. The reversal of 20461056320317 is 71302365016402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47187135076 + 20413869185241 = 217226^2 + 4518171^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20461056320317 - 2¹⁵ = 20461056287549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20461056320317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20461056320377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19238278 + ... + 20273959.

It is an arithmetic number, because the mean of its divisors is an integer number (2572661572299).

Almost surely, 2^{20461056320317} is an apocalyptic number.

It is an amenable number.

20461056320317 is a deficient number, since it is larger than the sum of its proper divisors (120236258075).

20461056320317 is a wasteful number, since it uses less digits than its factorization.

20461056320317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39515279.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 20461056320317 in words is "twenty trillion, four hundred sixty-one billion, fifty-six million, three hundred twenty thousand, three hundred seventeen".