20444211444020 has 72 divisors (see below), whose sum is σ = 53784002447784. Its totient is φ = 6470255925504.

The previous prime is 20444211444017. The next prime is 20444211444037. The reversal of 20444211444020 is 2044411244402.

It can be written as a sum of positive squares in 4 ways, for example, as 1044970276 + 20443166473744 = 32326^2 + 4521412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802350347 + ... + 802375826.

It is an arithmetic number, because the mean of its divisors is an integer number (747000033997).

Almost surely, 2^{20444211444020} is an apocalyptic number.

20444211444020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20444211444020 is an abundant number, since it is smaller than the sum of its proper divisors (33339791003764).

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

20444211444020 is a wasteful number, since it uses less digits than its factorization.

20444211444020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604726209 (or 1604726200 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 20444211444020 its reverse (2044411244402), we get a palindrome (22488622688422).

The spelling of 20444211444020 in words is "twenty trillion, four hundred forty-four billion, two hundred eleven million, four hundred forty-four thousand, twenty".