99821822906 has 48 divisors (see below), whose sum is σ = 166444888896. Its totient is φ = 44854363008.

The previous prime is 99821822899. The next prime is 99821822923. The reversal of 99821822906 is 60922812899.

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, 4538171 + ... + 4560113.

It is an arithmetic number, because the mean of its divisors is an integer number (3467601852).

Almost surely, 2^99821822906 is an apocalyptic number.

99821822906 is a deficient number, since it is larger than the sum of its proper divisors (66623065990).

99821822906 is a wasteful number, since it uses less digits than its factorization.

99821822906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22327 (or 22314 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 99821822906 in words is "ninety-nine billion, eight hundred twenty-one million, eight hundred twenty-two thousand, nine hundred six".