9871466664 has 64 divisors (see below), whose sum is σ = 25185608640. Its totient is φ = 3223101440.

The previous prime is 9871466659. The next prime is 9871466707. The reversal of 9871466664 is 4666641789.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 809299 + ... + 821405.

It is an arithmetic number, because the mean of its divisors is an integer number (393525135).

Almost surely, 2^9871466664 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 9871466664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12592804320).

9871466664 is an abundant number, since it is smaller than the sum of its proper divisors (15314141976).

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

9871466664 is a wasteful number, since it uses less digits than its factorization.

9871466664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12810 (or 12806 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 57.

The square root of 9871466664 is about 99355.2548383829. The cubic root of 9871466664 is about 2145.1643014533.

The spelling of 9871466664 in words is "nine billion, eight hundred seventy-one million, four hundred sixty-six thousand, six hundred sixty-four".