16443533334540 has 48 divisors (see below), whose sum is σ = 49583577441888. Its totient is φ = 4047638974464.

The previous prime is 16443533334499. The next prime is 16443533334559. The reversal of 16443533334540 is 4543333534461.

It is a super-3 number, since 3×16443533334540³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16443533334540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10540725717 + ... + 10540727276.

It is an arithmetic number, because the mean of its divisors is an integer number (1032991196706).

Almost surely, 2^{16443533334540} is an apocalyptic number.

16443533334540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16443533334540 is an abundant number, since it is smaller than the sum of its proper divisors (33140044107348).

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

16443533334540 is a wasteful number, since it uses less digits than its factorization.

16443533334540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21081453018 (or 21081453016 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 48.

The spelling of 16443533334540 in words is "sixteen trillion, four hundred forty-three billion, five hundred thirty-three million, three hundred thirty-four thousand, five hundred forty".