16021306312 has 64 divisors (see below), whose sum is σ = 34518067200. Its totient is φ = 6894642240.

The previous prime is 16021306303. The next prime is 16021306333. The reversal of 16021306312 is 21360312061.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4624693 + ... + 4628155.

It is an arithmetic number, because the mean of its divisors is an integer number (539344800).

Almost surely, 2^16021306312 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 16021306312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17259033600).

16021306312 is an abundant number, since it is smaller than the sum of its proper divisors (18496760888).

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

16021306312 is a wasteful number, since it uses less digits than its factorization.

16021306312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266 (or 6262 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 16021306312 its reverse (21360312061), we get a palindrome (37381618373).

The spelling of 16021306312 in words is "sixteen billion, twenty-one million, three hundred six thousand, three hundred twelve".