9169216056 has 768 divisors, whose sum is σ = 35663846400. Its totient is φ = 2051481600.

The previous prime is 9169216031. The next prime is 9169216079. The reversal of 9169216056 is 6506129619.

It is a happy number.

9169216056 is a `hidden beast` number, since 9 + 16 + 9 + 21 + 605 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 85693555 + ... + 85693661.

It is an arithmetic number, because the mean of its divisors is an integer number (46437300).

Almost surely, 2^9169216056 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 9169216056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17831923200).

9169216056 is an abundant number, since it is smaller than the sum of its proper divisors (26494630344).

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

9169216056 is a wasteful number, since it uses less digits than its factorization.

9169216056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 9169216056 is about 95756.0236016513. The cubic root of 9169216056 is about 2093.0393921279.

The spelling of 9169216056 in words is "nine billion, one hundred sixty-nine million, two hundred sixteen thousand, fifty-six".