66000438232 has 32 divisors (see below), whose sum is σ = 124836065280. Its totient is φ = 32711882400.

The previous prime is 66000438193. The next prime is 66000438247. The reversal of 66000438232 is 23283400066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433357 + ... + 565507.

It is an arithmetic number, because the mean of its divisors is an integer number (3901127040).

Almost surely, 2^66000438232 is an apocalyptic number.

It is an amenable number.

66000438232 is a deficient number, since it is larger than the sum of its proper divisors (58835627048).

66000438232 is a wasteful number, since it uses less digits than its factorization.

66000438232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132703 (or 132699 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 66000438232 its reverse (23283400066), we get a palindrome (89283838298).

The spelling of 66000438232 in words is "sixty-six billion, four hundred thirty-eight thousand, two hundred thirty-two".