66203167713 has 16 divisors (see below), whose sum is σ = 89407592640. Its totient is φ = 43568704256.

The previous prime is 66203167697. The next prime is 66203167717. The reversal of 66203167713 is 31776130266.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 66203167713 - 2⁴ = 66203167697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66203167717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36195 + ... + 365672.

It is an arithmetic number, because the mean of its divisors is an integer number (5587974540).

Almost surely, 2^66203167713 is an apocalyptic number.

It is an amenable number.

66203167713 is a deficient number, since it is larger than the sum of its proper divisors (23204424927).

66203167713 is a wasteful number, since it uses less digits than its factorization.

66203167713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402576.

The product of its (nonzero) digits is 190512, while the sum is 42.

Adding to 66203167713 its reverse (31776130266), we get a palindrome (97979297979).

The spelling of 66203167713 in words is "sixty-six billion, two hundred three million, one hundred sixty-seven thousand, seven hundred thirteen".