16443705670 has 48 divisors (see below), whose sum is σ = 34453449360. Its totient is φ = 5634183744.

The previous prime is 16443705659. The next prime is 16443705679. The reversal of 16443705670 is 7650734461.

It is a super-3 number, since 3×16443705670³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16443705679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 807757 + ... + 827863.

It is an arithmetic number, because the mean of its divisors is an integer number (717780195).

Almost surely, 2^16443705670 is an apocalyptic number.

16443705670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16443705670 is an abundant number, since it is smaller than the sum of its proper divisors (18009743690).

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

16443705670 is a wasteful number, since it uses less digits than its factorization.

16443705670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21797 (or 21790 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 16443705670 in words is "sixteen billion, four hundred forty-three million, seven hundred five thousand, six hundred seventy".