20344331641352 has 32 divisors (see below), whose sum is σ = 39851690995800. Its totient is φ = 9724159872000.

The previous prime is 20344331641331. The next prime is 20344331641357. The reversal of 20344331641352 is 25314613344302.

It can be written as a sum of positive squares in 4 ways, for example, as 19436759133796 + 907572507556 = 4408714^2 + 952666^2 .

It is not an unprimeable number, because it can be changed into a prime (20344331641357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434090849 + ... + 434137712.

Almost surely, 2^{20344331641352} is an apocalyptic number.

It is an amenable number.

20344331641352 is a deficient number, since it is larger than the sum of its proper divisors (19507359354448).

20344331641352 is a wasteful number, since it uses less digits than its factorization.

20344331641352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868228697 (or 868228693 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

Adding to 20344331641352 its reverse (25314613344302), we get a palindrome (45658944985654).

The spelling of 20344331641352 in words is "twenty trillion, three hundred forty-four billion, three hundred thirty-one million, six hundred forty-one thousand, three hundred fifty-two".