66203226043 has 24 divisors (see below), whose sum is σ = 68425786800. Its totient is φ = 64030958784.

The previous prime is 66203226031. The next prime is 66203226091. The reversal of 66203226043 is 34062230266.

It is not a de Polignac number, because 66203226043 - 2¹³ = 66203217851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66203226343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246108513 + ... + 246108781.

It is an arithmetic number, because the mean of its divisors is an integer number (2851074450).

Almost surely, 2^66203226043 is an apocalyptic number.

66203226043 is a deficient number, since it is larger than the sum of its proper divisors (2222560757).

66203226043 is a wasteful number, since it uses less digits than its factorization.

66203226043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 66203226043 in words is "sixty-six billion, two hundred three million, two hundred twenty-six thousand, forty-three".