20044104660 has 72 divisors (see below), whose sum is σ = 64376957736. Its totient is φ = 5030676480.

The previous prime is 20044104637. The next prime is 20044104679. The reversal of 20044104660 is 6640144002.

20044104660 is a `hidden beast` number, since 200 + 4 + 410 + 46 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8578834884 + 11465269776 = 92622^2 + 107076^2 .

It is a super-2 number, since 2×20044104660² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3272121 + ... + 3278240.

It is an arithmetic number, because the mean of its divisors is an integer number (894124413).

Almost surely, 2^20044104660 is an apocalyptic number.

20044104660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044104660 is an abundant number, since it is smaller than the sum of its proper divisors (44332853076).

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

20044104660 is a wasteful number, since it uses less digits than its factorization.

20044104660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550393 (or 6550388 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 20044104660 its reverse (6640144002), we get a palindrome (26684248662).

The spelling of 20044104660 in words is "twenty billion, forty-four million, one hundred four thousand, six hundred sixty".