9821005516 has 18 divisors (see below), whose sum is σ = 19992761628. Its totient is φ = 4209002280.

The previous prime is 9821005501. The next prime is 9821005517. The reversal of 9821005516 is 6155001289.

It is not an unprimeable number, because it can be changed into a prime (9821005517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25053390 + ... + 25053781.

Almost surely, 2^9821005516 is an apocalyptic number.

It is an amenable number.

9821005516 is an abundant number, since it is smaller than the sum of its proper divisors (10171756112).

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

9821005516 is a wasteful number, since it uses less digits than its factorization.

9821005516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50107189 (or 50107180 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 9821005516 is about 99100.9864532135. The cubic root of 9821005516 is about 2141.5028250752.

The spelling of 9821005516 in words is "nine billion, eight hundred twenty-one million, five thousand, five hundred sixteen".