9967571320 has 32 divisors (see below), whose sum is σ = 25630898400. Its totient is φ = 3417452928.

The previous prime is 9967571309. The next prime is 9967571347. The reversal of 9967571320 is 231757699.

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, 17798955 + ... + 17799514.

It is an arithmetic number, because the mean of its divisors is an integer number (800965575).

Almost surely, 2^9967571320 is an apocalyptic number.

It is an amenable number.

9967571320 is an abundant number, since it is smaller than the sum of its proper divisors (15663327080).

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

9967571320 is a wasteful number, since it uses less digits than its factorization.

9967571320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35598487 (or 35598483 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 49.

The square root of 9967571320 is about 99837.7249340148. The cubic root of 9967571320 is about 2152.1033189985.

The spelling of 9967571320 in words is "nine billion, nine hundred sixty-seven million, five hundred seventy-one thousand, three hundred twenty".