66433624512 has 56 divisors (see below), whose sum is σ = 175796155392. Its totient is φ = 22141536000.

The previous prime is 66433624483. The next prime is 66433624549. The reversal of 66433624512 is 21542633466.

It is a happy number.

66433624512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738087 + ... + 1775897.

Almost surely, 2^66433624512 is an apocalyptic number.

It is an amenable number.

66433624512 is an abundant number, since it is smaller than the sum of its proper divisors (109362530880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66433624512 is a wasteful number, since it uses less digits than its factorization.

66433624512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46977 (or 46967 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

The spelling of 66433624512 in words is "sixty-six billion, four hundred thirty-three million, six hundred twenty-four thousand, five hundred twelve".