20682518351244 has 24 divisors (see below), whose sum is σ = 48259284667440. Its totient is φ = 6894162043584.

The previous prime is 20682518351239. The next prime is 20682518351249. The reversal of 20682518351244 is 44215381528602.

It is an interprime number because it is at equal distance from previous prime (20682518351239) and next prime (20682518351249).

It is not an unprimeable number, because it can be changed into a prime (20682518351249) 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, 11929642 + ... + 13552910.

It is an arithmetic number, because the mean of its divisors is an integer number (2010803527810).

Almost surely, 2^{20682518351244} is an apocalyptic number.

It is an amenable number.

20682518351244 is an abundant number, since it is smaller than the sum of its proper divisors (27576766316196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20682518351244 is a wasteful number, since it uses less digits than its factorization.

20682518351244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685049 (or 2685047 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

Adding to 20682518351244 its reverse (44215381528602), we get a palindrome (64897899879846).

The spelling of 20682518351244 in words is "twenty trillion, six hundred eighty-two billion, five hundred eighteen million, three hundred fifty-one thousand, two hundred forty-four".