43204055663 has 16 divisors (see below), whose sum is σ = 45855421920. Its totient is φ = 40565047296.

The previous prime is 43204055641. The next prime is 43204055693. The reversal of 43204055663 is 36655040234.

It is a happy number.

43204055663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43204055663 - 2⁶ = 43204055599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43204055693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22654556 + ... + 22656462.

It is an arithmetic number, because the mean of its divisors is an integer number (2865963870).

Almost surely, 2^43204055663 is an apocalyptic number.

43204055663 is a deficient number, since it is larger than the sum of its proper divisors (2651366257).

43204055663 is a wasteful number, since it uses less digits than its factorization.

43204055663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 43204055663 its reverse (36655040234), we get a palindrome (79859095897).

The spelling of 43204055663 in words is "forty-three billion, two hundred four million, fifty-five thousand, six hundred sixty-three".