4065543456 has 96 divisors (see below), whose sum is σ = 11553212160. Its totient is φ = 1244381184.

The previous prime is 4065543439. The next prime is 4065543467. The reversal of 4065543456 is 6543455604.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232425 + ... + 249303.

It is an arithmetic number, because the mean of its divisors is an integer number (120345960).

Almost surely, 2^4065543456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4065543456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5776606080).

4065543456 is an abundant number, since it is smaller than the sum of its proper divisors (7487668704).

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

4065543456 is a wasteful number, since it uses less digits than its factorization.

4065543456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17098 (or 17090 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The square root of 4065543456 is about 63761.6142832033. The cubic root of 4065543456 is about 1596.0244341458.

The spelling of 4065543456 in words is "four billion, sixty-five million, five hundred forty-three thousand, four hundred fifty-six".