20473205064720 has 320 divisors, whose sum is σ = 67654309847040. Its totient is φ = 5109615396864.

The previous prime is 20473205064701. The next prime is 20473205064727. The reversal of 20473205064720 is 2746050237402.

It is not an unprimeable number, because it can be changed into a prime (20473205064727) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1169287326 + ... + 1169304834.

It is an arithmetic number, because the mean of its divisors is an integer number (211419718272).

Almost surely, 2^{20473205064720} is an apocalyptic number.

20473205064720 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 20473205064720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33827154923520).

20473205064720 is an abundant number, since it is smaller than the sum of its proper divisors (47181104782320).

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

20473205064720 is a wasteful number, since it uses less digits than its factorization.

20473205064720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22102 (or 22096 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 20473205064720 in words is "twenty trillion, four hundred seventy-three billion, two hundred five million, sixty-four thousand, seven hundred twenty".