9180064320 has 224 divisors, whose sum is σ = 35064192000. Its totient is φ = 1987835904.

The previous prime is 9180064297. The next prime is 9180064321. The reversal of 9180064320 is 234600819.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (9180064321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91731 + ... + 163629.

Almost surely, 2^9180064320 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 9180064320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17532096000).

9180064320 is an abundant number, since it is smaller than the sum of its proper divisors (25884127680).

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

9180064320 is a wasteful number, since it uses less digits than its factorization.

9180064320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71945 (or 71935 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 9180064320 is about 95812.6521916599. The cubic root of 9180064320 is about 2093.8645042955.

The spelling of 9180064320 in words is "nine billion, one hundred eighty million, sixty-four thousand, three hundred twenty".