8316531648 has 168 divisors, whose sum is σ = 26569080720. Its totient is φ = 2471731200.

The previous prime is 8316531611. The next prime is 8316531649. The reversal of 8316531648 is 8461356138.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8316531649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163698 + ... + 208398.

It is an arithmetic number, because the mean of its divisors is an integer number (158149290).

Almost surely, 2^8316531648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8316531648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13284540360).

8316531648 is an abundant number, since it is smaller than the sum of its proper divisors (18252549072).

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

8316531648 is a wasteful number, since it uses less digits than its factorization.

8316531648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44755 (or 44742 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 8316531648 is about 91195.0198640255. The cubic root of 8316531648 is about 2026.0371985178.

The spelling of 8316531648 in words is "eight billion, three hundred sixteen million, five hundred thirty-one thousand, six hundred forty-eight".