20344015444443 has 16 divisors (see below), whose sum is σ = 27374430293760. Its totient is φ = 13438140778656.

The previous prime is 20344015444393. The next prime is 20344015444447. The reversal of 20344015444443 is 34444451044302.

It is not a de Polignac number, because 20344015444443 - 2²⁴ = 20343998667227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20344015444395 and 20344015444404.

It is not an unprimeable number, because it can be changed into a prime (20344015444447) 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, 76577346 + ... + 76842552.

It is an arithmetic number, because the mean of its divisors is an integer number (1710901893360).

Almost surely, 2^{20344015444443} is an apocalyptic number.

20344015444443 is a deficient number, since it is larger than the sum of its proper divisors (7030414849317).

20344015444443 is a wasteful number, since it uses less digits than its factorization.

20344015444443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499906.

The product of its (nonzero) digits is 1474560, while the sum is 42.

Adding to 20344015444443 its reverse (34444451044302), we get a palindrome (54788466488745).

The spelling of 20344015444443 in words is "twenty trillion, three hundred forty-four billion, fifteen million, four hundred forty-four thousand, four hundred forty-three".