16443204247068 has 12 divisors (see below), whose sum is σ = 38367476576520. Its totient is φ = 5481068082352.

The previous prime is 16443204247051. The next prime is 16443204247081. The reversal of 16443204247068 is 86074240234461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×16443204247068³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16443204247068.

It is a congruent number.

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, 685133510283 + ... + 685133510306.

It is an arithmetic number, because the mean of its divisors is an integer number (3197289714710).

Almost surely, 2^{16443204247068} is an apocalyptic number.

It is an amenable number.

16443204247068 is an abundant number, since it is smaller than the sum of its proper divisors (21924272329452).

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

16443204247068 is a wasteful number, since it uses less digits than its factorization.

16443204247068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370267020596 (or 1370267020594 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 51.

The spelling of 16443204247068 in words is "sixteen trillion, four hundred forty-three billion, two hundred four million, two hundred forty-seven thousand, sixty-eight".