4066543266403 has 4 divisors (see below), whose sum is σ = 4066563111688. Its totient is φ = 4066523421120.

The previous prime is 4066543266389. The next prime is 4066543266407. The reversal of 4066543266403 is 3046623456604.

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 4066543266403 - 2⁹ = 4066543265891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4066543266407) 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, 9612033 + ... + 10026178.

It is an arithmetic number, because the mean of its divisors is an integer number (1016640777922).

Almost surely, 2^{4066543266403} is an apocalyptic number.

4066543266403 is a deficient number, since it is larger than the sum of its proper divisors (19845285).

4066543266403 is a wasteful number, since it uses less digits than its factorization.

4066543266403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19845284.

The product of its (nonzero) digits is 7464960, while the sum is 49.

The spelling of 4066543266403 in words is "four trillion, sixty-six billion, five hundred forty-three million, two hundred sixty-six thousand, four hundred three".