8611521608 has 16 divisors (see below), whose sum is σ = 16490148480. Its totient is φ = 4214148688.

The previous prime is 8611521593. The next prime is 8611521629. The reversal of 8611521608 is 8061251168.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11451116 + ... + 11451867.

It is an arithmetic number, because the mean of its divisors is an integer number (1030634280).

Almost surely, 2^8611521608 is an apocalyptic number.

It is an amenable number.

8611521608 is a deficient number, since it is larger than the sum of its proper divisors (7878626872).

8611521608 is a wasteful number, since it uses less digits than its factorization.

8611521608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22903036 (or 22903032 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 8611521608 is about 92798.2845100059. The cubic root of 8611521608 is about 2049.7141467772.

The spelling of 8611521608 in words is "eight billion, six hundred eleven million, five hundred twenty-one thousand, six hundred eight".