9001168512 has 128 divisors (see below), whose sum is σ = 27522700800. Its totient is φ = 2553154560.

The previous prime is 9001168511. The next prime is 9001168529. The reversal of 9001168512 is 2158611009.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (9001168511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361587 + ... + 385677.

It is an arithmetic number, because the mean of its divisors is an integer number (215021100).

Almost surely, 2^9001168512 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 9001168512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13761350400).

9001168512 is an abundant number, since it is smaller than the sum of its proper divisors (18521532288).

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

9001168512 is a wasteful number, since it uses less digits than its factorization.

9001168512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24254 (or 24242 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 9001168512 is about 94874.4882041532. The cubic root of 9001168512 is about 2080.1738414861.

The spelling of 9001168512 in words is "nine billion, one million, one hundred sixty-eight thousand, five hundred twelve".