66665303033 has 8 divisors (see below), whose sum is σ = 76770513600. Its totient is φ = 56705491440.

The previous prime is 66665302997. The next prime is 66665303137. The reversal of 66665303033 is 33030356666.

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 66665303033 - 2¹⁰ = 66665302009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66665303233) by changing a digit.

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, 36348758 + ... + 36350591.

It is an arithmetic number, because the mean of its divisors is an integer number (9596314200).

Almost surely, 2^66665303033 is an apocalyptic number.

It is an amenable number.

66665303033 is a deficient number, since it is larger than the sum of its proper divisors (10105210567).

66665303033 is a wasteful number, since it uses less digits than its factorization.

66665303033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72699487.

The product of its (nonzero) digits is 524880, while the sum is 41.

Adding to 66665303033 its reverse (33030356666), we get a palindrome (99695659699).

The spelling of 66665303033 in words is "sixty-six billion, six hundred sixty-five million, three hundred three thousand, thirty-three".