20344352405412 has 48 divisors (see below), whose sum is σ = 54267615319680. Its totient is φ = 5810956876032.

The previous prime is 20344352405407. The next prime is 20344352405413. The reversal of 20344352405412 is 21450425344302.

It is not an unprimeable number, because it can be changed into a prime (20344352405413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35447793 + ... + 36017144.

It is an arithmetic number, because the mean of its divisors is an integer number (1130575319160).

Almost surely, 2^{20344352405412} is an apocalyptic number.

It is an amenable number.

20344352405412 is an abundant number, since it is smaller than the sum of its proper divisors (33923262914268).

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

20344352405412 is a wasteful number, since it uses less digits than its factorization.

20344352405412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71468340 (or 71468338 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 20344352405412 its reverse (21450425344302), we get a palindrome (41794777749714).

The spelling of 20344352405412 in words is "twenty trillion, three hundred forty-four billion, three hundred fifty-two million, four hundred five thousand, four hundred twelve".