16443423234736 has 20 divisors (see below), whose sum is σ = 33535928966200. Its totient is φ = 7788989953152.

The previous prime is 16443423234731. The next prime is 16443423234757. The reversal of 16443423234736 is 63743232434461.

It is a happy number.

It is a super-3 number, since 3×16443423234736³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16443423234731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27045103701 + ... + 27045104308.

It is an arithmetic number, because the mean of its divisors is an integer number (1676796448310).

Almost surely, 2^{16443423234736} is an apocalyptic number.

16443423234736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16443423234736 is an abundant number, since it is smaller than the sum of its proper divisors (17092505731464).

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

16443423234736 is a wasteful number, since it uses less digits than its factorization.

16443423234736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54090208036 (or 54090208030 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 52.

The spelling of 16443423234736 in words is "sixteen trillion, four hundred forty-three billion, four hundred twenty-three million, two hundred thirty-four thousand, seven hundred thirty-six".