20317480568880 has 320 divisors, whose sum is σ = 69955726975488. Its totient is φ = 4836616519680.

The previous prime is 20317480568867. The next prime is 20317480568893. The reversal of 20317480568880 is 8886508471302.

It is an interprime number because it is at equal distance from previous prime (20317480568867) and next prime (20317480568893).

It is a Harshad number since it is a multiple of its sum of digits (60).

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 63 ways as a sum of consecutive naturals, for example, 55889784 + ... + 56252136.

Almost surely, 2^{20317480568880} is an apocalyptic number.

20317480568880 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 20317480568880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34977863487744).

20317480568880 is an abundant number, since it is smaller than the sum of its proper divisors (49638246406608).

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

20317480568880 is a wasteful number, since it uses less digits than its factorization.

20317480568880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362764 (or 362758 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 20317480568880 in words is "twenty trillion, three hundred seventeen billion, four hundred eighty million, five hundred sixty-eight thousand, eight hundred eighty".