16221304065352 has 16 divisors (see below), whose sum is σ = 30710235853440. Its totient is φ = 8031907837776.

The previous prime is 16221304065347. The next prime is 16221304065383. The reversal of 16221304065352 is 25356040312261.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9843023488 + ... + 9843025135.

It is an arithmetic number, because the mean of its divisors is an integer number (1919389740840).

Almost surely, 2^{16221304065352} is an apocalyptic number.

It is an amenable number.

16221304065352 is a deficient number, since it is larger than the sum of its proper divisors (14488931788088).

16221304065352 is a wasteful number, since it uses less digits than its factorization.

16221304065352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19686048732 (or 19686048728 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 16221304065352 in words is "sixteen trillion, two hundred twenty-one billion, three hundred four million, sixty-five thousand, three hundred fifty-two".