8608608666 has 32 divisors (see below), whose sum is σ = 21863134080. Its totient is φ = 2459602368.

The previous prime is 8608608661. The next prime is 8608608667. The reversal of 8608608666 is 6668068068.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8608608661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11386671 + ... + 11387426.

It is an arithmetic number, because the mean of its divisors is an integer number (683222940).

Almost surely, 2^8608608666 is an apocalyptic number.

8608608666 is an abundant number, since it is smaller than the sum of its proper divisors (13254525414).

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

8608608666 is a wasteful number, since it uses less digits than its factorization.

8608608666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22774115 (or 22774109 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The square root of 8608608666 is about 92782.5881617882. The cubic root of 8608608666 is about 2049.4830079208.

The spelling of 8608608666 in words is "eight billion, six hundred eight million, six hundred eight thousand, six hundred sixty-six".