16443502648 has 8 divisors (see below), whose sum is σ = 30831567480. Its totient is φ = 8221751320.

The previous prime is 16443502627. The next prime is 16443502687. The reversal of 16443502648 is 84620534461.

16443502648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×16443502648³ (a number of 32 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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027718908 + ... + 1027718923.

It is an arithmetic number, because the mean of its divisors is an integer number (3853945935).

Almost surely, 2^16443502648 is an apocalyptic number.

It is an amenable number.

16443502648 is a deficient number, since it is larger than the sum of its proper divisors (14388064832).

16443502648 is a wasteful number, since it uses less digits than its factorization.

16443502648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055437837 (or 2055437833 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 16443502648 in words is "sixteen billion, four hundred forty-three million, five hundred two thousand, six hundred forty-eight".