8821666920916 has 24 divisors (see below), whose sum is σ = 16290132384960. Its totient is φ = 4171652941632.

The previous prime is 8821666920883. The next prime is 8821666920923. The reversal of 8821666920916 is 6190296661288.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538686666 + ... + 538703041.

It is an arithmetic number, because the mean of its divisors is an integer number (678755516040).

Almost surely, 2^{8821666920916} is an apocalyptic number.

It is an amenable number.

8821666920916 is a deficient number, since it is larger than the sum of its proper divisors (7468465464044).

8821666920916 is a wasteful number, since it uses less digits than its factorization.

8821666920916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077389823 (or 1077389821 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 64.

The spelling of 8821666920916 in words is "eight trillion, eight hundred twenty-one billion, six hundred sixty-six million, nine hundred twenty thousand, nine hundred sixteen".