8447588660 has 192 divisors, whose sum is σ = 22534557696. Its totient is φ = 2593382400.

The previous prime is 8447588587. The next prime is 8447588687. The reversal of 8447588660 is 668857448.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8447588596 and 8447588605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4499642 + ... + 4501518.

It is an arithmetic number, because the mean of its divisors is an integer number (117367488).

Almost surely, 2^8447588660 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 8447588660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11267278848).

8447588660 is an abundant number, since it is smaller than the sum of its proper divisors (14086969036).

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

8447588660 is a wasteful number, since it uses less digits than its factorization.

8447588660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The square root of 8447588660 is about 91910.7646579007. The cubic root of 8447588660 is about 2036.6242918256.

The spelling of 8447588660 in words is "eight billion, four hundred forty-seven million, five hundred eighty-eight thousand, six hundred sixty".