8821603620000 has 720 divisors, whose sum is σ = 34154943419520. Its totient is φ = 2214010368000.

The previous prime is 8821603619923. The next prime is 8821603620047. The reversal of 8821603620000 is 263061288.

8821603620000 is a `hidden beast` number, since 8 + 8 + 21 + 6 + 0 + 3 + 620 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 156031737 + ... + 156088263.

It is an arithmetic number, because the mean of its divisors is an integer number (47437421416).

Almost surely, 2^{8821603620000} is an apocalyptic number.

8821603620000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8821603620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17077471709760).

8821603620000 is an abundant number, since it is smaller than the sum of its proper divisors (25333339799520).

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

8821603620000 is a wasteful number, since it uses less digits than its factorization.

8821603620000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56600 (or 56554 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Adding to 8821603620000 its reverse (263061288), we get a palindrome (8821866681288).

The spelling of 8821603620000 in words is "eight trillion, eight hundred twenty-one billion, six hundred three million, six hundred twenty thousand".