66740733333 has 24 divisors (see below), whose sum is σ = 97818930560. Its totient is φ = 43841632320.

The previous prime is 66740733331. The next prime is 66740733377. The reversal of 66740733333 is 33333704766.

66740733333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66740733333 - 2¹ = 66740733331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740733331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633738 + ... + 731508.

Almost surely, 2^66740733333 is an apocalyptic number.

It is an amenable number.

66740733333 is a deficient number, since it is larger than the sum of its proper divisors (31078197227).

66740733333 is a wasteful number, since it uses less digits than its factorization.

66740733333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98889 (or 98886 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 45.

The spelling of 66740733333 in words is "sixty-six billion, seven hundred forty million, seven hundred thirty-three thousand, three hundred thirty-three".