8821216630450 has 48 divisors (see below), whose sum is σ = 18848543794560. Its totient is φ = 3008746552320.

The previous prime is 8821216630411. The next prime is 8821216630459. The reversal of 8821216630450 is 540366121288.

It is a self number, because there is not a number n which added to its sum of digits gives 8821216630450.

It is not an unprimeable number, because it can be changed into a prime (8821216630459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65226430 + ... + 65361529.

It is an arithmetic number, because the mean of its divisors is an integer number (392677995720).

Almost surely, 2^{8821216630450} is an apocalyptic number.

8821216630450 is an abundant number, since it is smaller than the sum of its proper divisors (10027327164110).

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

8821216630450 is a wasteful number, since it uses less digits than its factorization.

8821216630450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130588171 (or 130588166 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 8821216630450 in words is "eight trillion, eight hundred twenty-one billion, two hundred sixteen million, six hundred thirty thousand, four hundred fifty".