8556516327552 has 384 divisors, whose sum is σ = 26481263256000. Its totient is φ = 2432524419072.

The previous prime is 8556516327481. The next prime is 8556516327559. The reversal of 8556516327552 is 2557236156558.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (8556516327559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65547724 + ... + 65678132.

Almost surely, 2^{8556516327552} 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 8556516327552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13240631628000).

8556516327552 is an abundant number, since it is smaller than the sum of its proper divisors (17924746928448).

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

8556516327552 is a wasteful number, since it uses less digits than its factorization.

8556516327552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130508 (or 130473 counting only the distinct ones).

The product of its digits is 75600000, while the sum is 60.

The spelling of 8556516327552 in words is "eight trillion, five hundred fifty-six billion, five hundred sixteen million, three hundred twenty-seven thousand, five hundred fifty-two".