20844295021760 has 448 divisors, whose sum is σ = 63266531328000. Its totient is φ = 6367959908352.

The previous prime is 20844295021729. The next prime is 20844295021787. The reversal of 20844295021760 is 6712059244802.

It is a tau number, because it is divible by the number of its divisors (448).

It is a junction number, because it is equal to n+sod(n) for n = 20844295021699 and 20844295021708.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1184393441 + ... + 1184411039.

It is an arithmetic number, because the mean of its divisors is an integer number (141219936000).

Almost surely, 2^{20844295021760} is an apocalyptic number.

20844295021760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20844295021760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31633265664000).

20844295021760 is an abundant number, since it is smaller than the sum of its proper divisors (42422236306240).

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

20844295021760 is a wasteful number, since it uses less digits than its factorization.

20844295021760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19296 (or 19286 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 20844295021760 in words is "twenty trillion, eight hundred forty-four billion, two hundred ninety-five million, twenty-one thousand, seven hundred sixty".