9161123328 has 480 divisors, whose sum is σ = 32006118144. Its totient is φ = 2561974272.

The previous prime is 9161123311. The next prime is 9161123333. The reversal of 9161123328 is 8233211619.

9161123328 is a `hidden beast` number, since 9 + 1 + 611 + 2 + 3 + 32 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 9161123292 and 9161123301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58351026 + ... + 58351182.

Almost surely, 2^9161123328 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 9161123328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16003059072).

9161123328 is an abundant number, since it is smaller than the sum of its proper divisors (22844994816).

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

9161123328 is an equidigital number, since it uses as much as digits as its factorization.

9161123328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 236 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 9161123328 is about 95713.7572556840. The cubic root of 9161123328 is about 2092.4234403715.

The spelling of 9161123328 in words is "nine billion, one hundred sixty-one million, one hundred twenty-three thousand, three hundred twenty-eight".