20444610403560 has 256 divisors, whose sum is σ = 73083882700800. Its totient is φ = 4476386460672.

The previous prime is 20444610403559. The next prime is 20444610403561. The reversal of 20444610403560 is 6530401644402.

It is an interprime number because it is at equal distance from previous prime (20444610403559) and next prime (20444610403561).

It is not an unprimeable number, because it can be changed into a prime (20444610403561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 210492 + ... + 6397931.

It is an arithmetic number, because the mean of its divisors is an integer number (285483916800).

Almost surely, 2^{20444610403560} is an apocalyptic number.

20444610403560 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 20444610403560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36541941350400).

20444610403560 is an abundant number, since it is smaller than the sum of its proper divisors (52639272297240).

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

20444610403560 is a wasteful number, since it uses less digits than its factorization.

20444610403560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6608600 (or 6608596 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 20444610403560 in words is "twenty trillion, four hundred forty-four billion, six hundred ten million, four hundred three thousand, five hundred sixty".