20732272001280 has 1728 divisors, whose sum is σ = 89092907624448. Its totient is φ = 4343275192320.

The previous prime is 20732272001251. The next prime is 20732272001333. The reversal of 20732272001280 is 8210027223702.

It is a happy number.

20732272001280 is a `hidden beast` number, since 2 + 0 + 7 + 322 + 7 + 200 + 128 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 191 ways as a sum of consecutive naturals, for example, 15012506190 + ... + 15012507570.

It is an arithmetic number, because the mean of its divisors is an integer number (51558395616).

Almost surely, 2^{20732272001280} is an apocalyptic number.

20732272001280 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 20732272001280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44546453812224).

20732272001280 is an abundant number, since it is smaller than the sum of its proper divisors (68360635623168).

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

20732272001280 is a wasteful number, since it uses less digits than its factorization.

20732272001280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1695 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

Adding to 20732272001280 its reverse (8210027223702), we get a palindrome (28942299224982).

The spelling of 20732272001280 in words is "twenty trillion, seven hundred thirty-two billion, two hundred seventy-two million, one thousand, two hundred eighty".