16443945870 has 32 divisors (see below), whose sum is σ = 43053240960. Its totient is φ = 3986411040.

The previous prime is 16443945839. The next prime is 16443945899. The reversal of 16443945870 is 7854934461.

It is a happy number.

16443945870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×16443945870³ (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 in 15 ways as a sum of consecutive naturals, for example, 24914740 + ... + 24915399.

It is an arithmetic number, because the mean of its divisors is an integer number (1345413780).

Almost surely, 2^16443945870 is an apocalyptic number.

16443945870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16443945870 is an abundant number, since it is smaller than the sum of its proper divisors (26609295090).

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

16443945870 is a wasteful number, since it uses less digits than its factorization.

16443945870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49830160.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 16443945870 in words is "sixteen billion, four hundred forty-three million, nine hundred forty-five thousand, eight hundred seventy".