20344402013441 has 8 divisors (see below), whose sum is σ = 22193993473344. Its totient is φ = 18494827281520.

The previous prime is 20344402013389. The next prime is 20344402013449. The reversal of 20344402013441 is 14431020444302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344402013441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20344402013398 and 20344402013407.

It is not an unprimeable number, because it can be changed into a prime (20344402013449) 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 7 ways as a sum of consecutive naturals, for example, 1568006 + ... + 6568671.

It is an arithmetic number, because the mean of its divisors is an integer number (2774249184168).

Almost surely, 2^{20344402013441} is an apocalyptic number.

It is an amenable number.

20344402013441 is a deficient number, since it is larger than the sum of its proper divisors (1849591459903).

20344402013441 is a wasteful number, since it uses less digits than its factorization.

20344402013441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363991.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 20344402013441 its reverse (14431020444302), we get a palindrome (34775422457743).

The spelling of 20344402013441 in words is "twenty trillion, three hundred forty-four billion, four hundred two million, thirteen thousand, four hundred forty-one".