20844336227358 has 256 divisors, whose sum is σ = 52224621281280. Its totient is φ = 5415716592000.

The previous prime is 20844336227357. The next prime is 20844336227401. The reversal of 20844336227358 is 85372263344802.

It is a super-3 number, since 3×20844336227358³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20844336227298 and 20844336227307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20844336227357) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3447051091 + ... + 3447057137.

It is an arithmetic number, because the mean of its divisors is an integer number (204002426880).

Almost surely, 2^{20844336227358} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20844336227358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26112310640640).

20844336227358 is an abundant number, since it is smaller than the sum of its proper divisors (31380285053922).

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

20844336227358 is a wasteful number, since it uses less digits than its factorization.

20844336227358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123.

The product of its (nonzero) digits is 46448640, while the sum is 57.

The spelling of 20844336227358 in words is "twenty trillion, eight hundred forty-four billion, three hundred thirty-six million, two hundred twenty-seven thousand, three hundred fifty-eight".