20317809598752 has 192 divisors, whose sum is σ = 53868549087360. Its totient is φ = 6705161109504.

The previous prime is 20317809598729. The next prime is 20317809598781. The reversal of 20317809598752 is 25789590871302.

It is a super-2 number, since 2×20317809598752² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4663254558 + ... + 4663258914.

It is an arithmetic number, because the mean of its divisors is an integer number (280565359830).

Almost surely, 2^{20317809598752} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20317809598752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26934274543680).

20317809598752 is an abundant number, since it is smaller than the sum of its proper divisors (33550739488608).

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

20317809598752 is a wasteful number, since it uses less digits than its factorization.

20317809598752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715 (or 5707 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 66.

The spelling of 20317809598752 in words is "twenty trillion, three hundred seventeen billion, eight hundred nine million, five hundred ninety-eight thousand, seven hundred fifty-two".