66433624513 has 8 divisors (see below), whose sum is σ = 66761267936. Its totient is φ = 66106411200.

The previous prime is 66433624483. The next prime is 66433624549. The reversal of 66433624513 is 31542633466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66433624513 - 2²¹ = 66431527361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66433624513.

It is not an unprimeable number, because it can be changed into a prime (66433622513) 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 7 ways as a sum of consecutive naturals, for example, 204370 + ... + 417892.

It is an arithmetic number, because the mean of its divisors is an integer number (8345158492).

Almost surely, 2^66433624513 is an apocalyptic number.

It is an amenable number.

66433624513 is a deficient number, since it is larger than the sum of its proper divisors (327643423).

66433624513 is a wasteful number, since it uses less digits than its factorization.

66433624513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215055.

The product of its digits is 933120, while the sum is 43.

The spelling of 66433624513 in words is "sixty-six billion, four hundred thirty-three million, six hundred twenty-four thousand, five hundred thirteen".