16543301044 has 12 divisors (see below), whose sum is σ = 28993799044. Its totient is φ = 8259358464.

The previous prime is 16543301041. The next prime is 16543301059. The reversal of 16543301044 is 44010334561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5808268944 + 10735032100 = 76212^2 + 103610^2 .

It is a super-2 number, since 2×16543301044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16543300997 and 16543301015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16543301041) 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, 3069987 + ... + 3075370.

Almost surely, 2^16543301044 is an apocalyptic number.

It is an amenable number.

16543301044 is a deficient number, since it is larger than the sum of its proper divisors (12450498000).

16543301044 is a wasteful number, since it uses less digits than its factorization.

16543301044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6146034 (or 6146032 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 16543301044 in words is "sixteen billion, five hundred forty-three million, three hundred one thousand, forty-four".