16443527454243 has 12 divisors (see below), whose sum is σ = 23757481114120. Its totient is φ = 10959711988896.

The previous prime is 16443527454197. The next prime is 16443527454271. The reversal of 16443527454243 is 34245472534461.

16443527454243 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 3 + 52 + 7 + 4 + 542 + 43 = 666.

It is not a de Polignac number, because 16443527454243 - 2¹⁴ = 16443527437859 is a prime.

It is a super-3 number, since 3×16443527454243³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16443527454243.

It is not an unprimeable number, because it can be changed into a prime (16443527554243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219931153 + ... + 220005906.

Almost surely, 2^{16443527454243} is an apocalyptic number.

16443527454243 is a deficient number, since it is larger than the sum of its proper divisors (7313953659877).

16443527454243 is a wasteful number, since it uses less digits than its factorization.

16443527454243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439941218 (or 439941215 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 54.

The spelling of 16443527454243 in words is "sixteen trillion, four hundred forty-three billion, five hundred twenty-seven million, four hundred fifty-four thousand, two hundred forty-three".