20641053044 has 12 divisors (see below), whose sum is σ = 36235794084. Its totient is φ = 10287969024.

The previous prime is 20641053029. The next prime is 20641053067. The reversal of 20641053044 is 44035014602.

It can be written as a sum of positive squares in 2 ways, for example, as 10411753444 + 10229299600 = 102038^2 + 101140^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20641052998 and 20641053016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8137949 + ... + 8140484.

It is an arithmetic number, because the mean of its divisors is an integer number (3019649507).

Almost surely, 2^20641053044 is an apocalyptic number.

It is an amenable number.

20641053044 is a deficient number, since it is larger than the sum of its proper divisors (15594741040).

20641053044 is a wasteful number, since it uses less digits than its factorization.

20641053044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16278754 (or 16278752 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20641053044 its reverse (44035014602), we get a palindrome (64676067646).

The spelling of 20641053044 in words is "twenty billion, six hundred forty-one million, fifty-three thousand, forty-four".