16443576423252 has 108 divisors (see below), whose sum is σ = 45690449464660. Its totient is φ = 4982626725120.

The previous prime is 16443576423217. The next prime is 16443576423289. The reversal of 16443576423252 is 25232467534461.

16443576423252 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 3 + 576 + 42 + 3 + 25 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10944954755856 + 5498621667396 = 3308316^2 + 2344914^2 .

It is a super-3 number, since 3×16443576423252³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 87152088 + ... + 87340560.

Almost surely, 2^{16443576423252} is an apocalyptic number.

16443576423252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16443576423252 is an abundant number, since it is smaller than the sum of its proper divisors (29246873041408).

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

16443576423252 is a wasteful number, since it uses less digits than its factorization.

16443576423252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208534 (or 208518 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 54.

The spelling of 16443576423252 in words is "sixteen trillion, four hundred forty-three billion, five hundred seventy-six million, four hundred twenty-three thousand, two hundred fifty-two".