8821607616 has 168 divisors, whose sum is σ = 26347186320. Its totient is φ = 2926513152.

The previous prime is 8821607573. The next prime is 8821607623. The reversal of 8821607616 is 6167061288.

It is a happy number.

8821607616 is a `hidden beast` number, since 8 + 8 + 21 + 6 + 0 + 7 + 616 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3560170 + ... + 3562646.

It is an arithmetic number, because the mean of its divisors is an integer number (156828490).

Almost surely, 2^8821607616 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 8821607616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13173593160).

8821607616 is an abundant number, since it is smaller than the sum of its proper divisors (17525578704).

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

8821607616 is a wasteful number, since it uses less digits than its factorization.

8821607616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 8821607616 is about 93923.4135665863. The cubic root of 8821607616 is about 2066.2486309983.

The spelling of 8821607616 in words is "eight billion, eight hundred twenty-one million, six hundred seven thousand, six hundred sixteen".