20444213120 has 64 divisors (see below), whose sum is σ = 49307138640. Its totient is φ = 8105287680.

The previous prime is 20444213117. The next prime is 20444213129. The reversal of 20444213120 is 2131244402.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444213129) 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, 69026 + ... + 213665.

Almost surely, 2^20444213120 is an apocalyptic number.

20444213120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20444213120 is an abundant number, since it is smaller than the sum of its proper divisors (28862925520).

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

20444213120 is a wasteful number, since it uses less digits than its factorization.

20444213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282823 (or 282811 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20444213120 its reverse (2131244402), we get a palindrome (22575457522).

The spelling of 20444213120 in words is "twenty billion, four hundred forty-four million, two hundred thirteen thousand, one hundred twenty".