20344331641426 has 16 divisors (see below), whose sum is σ = 33402673138968. Its totient is φ = 9235762156800.

The previous prime is 20344331641421. The next prime is 20344331641427. The reversal of 20344331641426 is 62414613344302.

It can be written as a sum of positive squares in 4 ways, for example, as 11192805169225 + 9151526472201 = 3345565^2 + 3025149^2 .

It is not an unprimeable number, because it can be changed into a prime (20344331641421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6413722135 + ... + 6413725306.

Almost surely, 2^{20344331641426} is an apocalyptic number.

20344331641426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20344331641426 is a deficient number, since it is larger than the sum of its proper divisors (13058341497542).

20344331641426 is a wasteful number, since it uses less digits than its factorization.

20344331641426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12827447517.

The product of its (nonzero) digits is 995328, while the sum is 43.

Adding to 20344331641426 its reverse (62414613344302), we get a palindrome (82758944985728).

The spelling of 20344331641426 in words is "twenty trillion, three hundred forty-four billion, three hundred thirty-one million, six hundred forty-one thousand, four hundred twenty-six".