20344316451632 has 20 divisors (see below), whose sum is σ = 39417744762096. Its totient is φ = 10171995222720.

The previous prime is 20344316451593. The next prime is 20344316451637. The reversal of 20344316451632 is 23615461344302.

It is not an unprimeable number, because it can be changed into a prime (20344316451637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9154844 + ... + 11157947.

Almost surely, 2^{20344316451632} is an apocalyptic number.

It is an amenable number.

20344316451632 is a deficient number, since it is larger than the sum of its proper divisors (19073428310464).

20344316451632 is a wasteful number, since it uses less digits than its factorization.

20344316451632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20375396 (or 20375390 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

Adding to 20344316451632 its reverse (23615461344302), we get a palindrome (43959777795934).

The spelling of 20344316451632 in words is "twenty trillion, three hundred forty-four billion, three hundred sixteen million, four hundred fifty-one thousand, six hundred thirty-two".