20346654110412 has 240 divisors, whose sum is σ = 57318344616960. Its totient is φ = 5610548313216.

The previous prime is 20346654110369. The next prime is 20346654110417. The reversal of 20346654110412 is 21401145664302.

It is not an unprimeable number, because it can be changed into a prime (20346654110417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3364748773 + ... + 3364754819.

It is an arithmetic number, because the mean of its divisors is an integer number (238826435904).

Almost surely, 2^{20346654110412} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20346654110412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28659172308480).

20346654110412 is an abundant number, since it is smaller than the sum of its proper divisors (36971690506548).

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

20346654110412 is a wasteful number, since it uses less digits than its factorization.

20346654110412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138 (or 10115 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

Adding to 20346654110412 its reverse (21401145664302), we get a palindrome (41747799774714).

The spelling of 20346654110412 in words is "twenty trillion, three hundred forty-six billion, six hundred fifty-four million, one hundred ten thousand, four hundred twelve".