20160444543 has 4 divisors (see below), whose sum is σ = 26880592728. Its totient is φ = 13440296360.

The previous prime is 20160444511. The next prime is 20160444569. The reversal of 20160444543 is 34544406102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20160444543 - 2⁵ = 20160444511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20160444043) 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, 3360074088 + ... + 3360074093.

It is an arithmetic number, because the mean of its divisors is an integer number (6720148182).

Almost surely, 2^20160444543 is an apocalyptic number.

20160444543 is a deficient number, since it is larger than the sum of its proper divisors (6720148185).

20160444543 is an equidigital number, since it uses as much as digits as its factorization.

20160444543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720148184.

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 20160444543 in words is "twenty billion, one hundred sixty million, four hundred forty-four thousand, five hundred forty-three".