8999606056896 has 896 divisors, whose sum is σ = 33419709030400. Its totient is φ = 2340766605312.

The previous prime is 8999606056813. The next prime is 8999606056919. The reversal of 8999606056896 is 6986506069998.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 929802585 + ... + 929812263.

It is an arithmetic number, because the mean of its divisors is an integer number (37298782400).

Almost surely, 2^{8999606056896} 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 8999606056896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16709854515200).

8999606056896 is an abundant number, since it is smaller than the sum of its proper divisors (24420102973504).

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

8999606056896 is an equidigital number, since it uses as much as digits as its factorization.

8999606056896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9805 (or 9777 counting only the distinct ones).

The product of its (nonzero) digits is 2720977920, while the sum is 81.

The spelling of 8999606056896 in words is "eight trillion, nine hundred ninety-nine billion, six hundred six million, fifty-six thousand, eight hundred ninety-six".