16289601328 has 160 divisors (see below), whose sum is σ = 44219169792. Its totient is φ = 5603558400.

The previous prime is 16289601319. The next prime is 16289601329. The reversal of 16289601328 is 82310698261.

It is a super-2 number, since 2×16289601328² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (16289601329) 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, 346258 + ... + 390478.

Almost surely, 2^16289601328 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 16289601328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22109584896).

16289601328 is an abundant number, since it is smaller than the sum of its proper divisors (27929568464).

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

16289601328 is a wasteful number, since it uses less digits than its factorization.

16289601328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44283 (or 44277 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 16289601328 in words is "sixteen billion, two hundred eighty-nine million, six hundred one thousand, three hundred twenty-eight".