8668442560 has 56 divisors (see below), whose sum is σ = 21031236576. Its totient is φ = 3401948160.

The previous prime is 8668442437. The next prime is 8668442593. The reversal of 8668442560 is 652448668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238596 + ... + 272515.

It is an arithmetic number, because the mean of its divisors is an integer number (375557796).

Almost surely, 2^8668442560 is an apocalyptic number.

8668442560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8668442560 is an abundant number, since it is smaller than the sum of its proper divisors (12362794016).

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

8668442560 is a wasteful number, since it uses less digits than its factorization.

8668442560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511181 (or 511171 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The square root of 8668442560 is about 93104.4712137929. The cubic root of 8668442560 is about 2054.2203407087.

The spelling of 8668442560 in words is "eight billion, six hundred sixty-eight million, four hundred forty-two thousand, five hundred sixty".