16443533311252 has 48 divisors (see below), whose sum is σ = 30706854796800. Its totient is φ = 7687814916320.

The previous prime is 16443533311201. The next prime is 16443533311267. The reversal of 16443533311252 is 25211333534461.

It is a super-3 number, since 3×16443533311252³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16443533311199 and 16443533311208.

It is a congruent number.

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, 7490374 + ... + 9433597.

It is an arithmetic number, because the mean of its divisors is an integer number (639726141600).

Almost surely, 2^{16443533311252} is an apocalyptic number.

It is an amenable number.

16443533311252 is a deficient number, since it is larger than the sum of its proper divisors (14263321485548).

16443533311252 is a wasteful number, since it uses less digits than its factorization.

16443533311252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16924236 (or 16924234 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The spelling of 16443533311252 in words is "sixteen trillion, four hundred forty-three billion, five hundred thirty-three million, three hundred eleven thousand, two hundred fifty-two".