8812663021568 has 448 divisors, whose sum is σ = 21458091663360. Its totient is φ = 3540225097728.

The previous prime is 8812663021549. The next prime is 8812663021571. The reversal of 8812663021568 is 8651203662188.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 6681320813 + ... + 6681322131.

Almost surely, 2^{8812663021568} 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 8812663021568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10729045831680).

8812663021568 is an abundant number, since it is smaller than the sum of its proper divisors (12645428641792).

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

8812663021568 is a wasteful number, since it uses less digits than its factorization.

8812663021568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1479 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 8812663021568 in words is "eight trillion, eight hundred twelve billion, six hundred sixty-three million, twenty-one thousand, five hundred sixty-eight".