20004321150320 has 160 divisors (see below), whose sum is σ = 50377678747200. Its totient is φ = 7343472033792.

The previous prime is 20004321150301. The next prime is 20004321150323. The reversal of 20004321150320 is 2305112340002.

It is a super-2 number, since 2×20004321150320² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004321150323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1450737986 + ... + 1450751774.

It is an arithmetic number, because the mean of its divisors is an integer number (314860492170).

Almost surely, 2^{20004321150320} is an apocalyptic number.

20004321150320 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 20004321150320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25188839373600).

20004321150320 is an abundant number, since it is smaller than the sum of its proper divisors (30373357596880).

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

20004321150320 is a wasteful number, since it uses less digits than its factorization.

20004321150320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21787 (or 21781 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20004321150320 its reverse (2305112340002), we get a palindrome (22309433490322).

The spelling of 20004321150320 in words is "twenty trillion, four billion, three hundred twenty-one million, one hundred fifty thousand, three hundred twenty".