5721316591680 has 168 divisors, whose sum is σ = 19686513763800. Its totient is φ = 1525097644032.

The previous prime is 5721316591657. The next prime is 5721316591691. The reversal of 5721316591680 is 861956131275.

5721316591680 is a `hidden beast` number, since 572 + 1 + 3 + 1 + 6 + 5 + 9 + 1 + 68 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 732955152384 + 4988361439296 = 856128^2 + 2233464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7133206 + ... + 7894634.

Almost surely, 2^{5721316591680} 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 5721316591680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9843256881900).

5721316591680 is an abundant number, since it is smaller than the sum of its proper divisors (13965197172120).

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

5721316591680 is a wasteful number, since it uses less digits than its factorization.

5721316591680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764061 (or 764048 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 5721316591680 in words is "five trillion, seven hundred twenty-one billion, three hundred sixteen million, five hundred ninety-one thousand, six hundred eighty".