8325581616 has 60 divisors (see below), whose sum is σ = 25418257800. Its totient is φ = 2522903040.

The previous prime is 8325581533. The next prime is 8325581639. The reversal of 8325581616 is 6161855238.

8325581616 is a `hidden beast` number, since 8 + 3 + 2 + 5 + 581 + 61 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2626441 + ... + 2629608.

It is an arithmetic number, because the mean of its divisors is an integer number (423637630).

Almost surely, 2^8325581616 is an apocalyptic number.

It is an amenable number.

8325581616 is an abundant number, since it is smaller than the sum of its proper divisors (17092676184).

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

8325581616 is a wasteful number, since it uses less digits than its factorization.

8325581616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256074 (or 5256065 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 8325581616 is about 91244.6251348538. The cubic root of 8325581616 is about 2026.7718366957.

The spelling of 8325581616 in words is "eight billion, three hundred twenty-five million, five hundred eighty-one thousand, six hundred sixteen".