66033384907 has 8 divisors (see below), whose sum is σ = 75471500000. Its totient is φ = 56596463424.

The previous prime is 66033384877. The next prime is 66033384931. The reversal of 66033384907 is 70948333066.

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 66033384907 - 2¹¹ = 66033382859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66033384007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176532 + ... + 404017.

It is an arithmetic number, because the mean of its divisors is an integer number (9433937500).

Almost surely, 2^66033384907 is an apocalyptic number.

66033384907 is a deficient number, since it is larger than the sum of its proper divisors (9438115093).

66033384907 is a wasteful number, since it uses less digits than its factorization.

66033384907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596805.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 66033384907 in words is "sixty-six billion, thirty-three million, three hundred eighty-four thousand, nine hundred seven".