66042224403 has 16 divisors (see below), whose sum is σ = 92727824640. Its totient is φ = 41727511584.

The previous prime is 66042224387. The next prime is 66042224411. The reversal of 66042224403 is 30442224066.

It is not a de Polignac number, because 66042224403 - 2⁴ = 66042224387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66042224503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4383001 + ... + 4398042.

It is an arithmetic number, because the mean of its divisors is an integer number (5795489040).

Almost surely, 2^66042224403 is an apocalyptic number.

66042224403 is a deficient number, since it is larger than the sum of its proper divisors (26685600237).

66042224403 is a wasteful number, since it uses less digits than its factorization.

66042224403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781178.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 66042224403 its reverse (30442224066), we get a palindrome (96484448469).

The spelling of 66042224403 in words is "sixty-six billion, forty-two million, two hundred twenty-four thousand, four hundred three".