9621530016 has 384 divisors, whose sum is σ = 31882346496. Its totient is φ = 2480163840.

The previous prime is 9621530011. The next prime is 9621530041. The reversal of 9621530016 is 6100351269.

9621530016 = T₂₁₁₃₃ + T₂₁₁₃₄ + ... + T₂₁₁₇₅.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9621530011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20602615 + ... + 20603081.

It is an arithmetic number, because the mean of its divisors is an integer number (83026944).

Almost surely, 2^9621530016 is an apocalyptic number.

9621530016 is a gapful number since it is divisible by the number (96) 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 9621530016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15941173248).

9621530016 is an abundant number, since it is smaller than the sum of its proper divisors (22260816480).

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

9621530016 is a wasteful number, since it uses less digits than its factorization.

9621530016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 9621530016 is about 98089.3980815460. The cubic root of 9621530016 is about 2126.9047754194.

The spelling of 9621530016 in words is "nine billion, six hundred twenty-one million, five hundred thirty thousand, sixteen".