66201333 has 16 divisors (see below), whose sum is σ = 98343936. Its totient is φ = 39267440.

The previous prime is 66201313. The next prime is 66201361. The reversal of 66201333 is 33310266.

It is a cyclic number.

It is not a de Polignac number, because 66201333 - 2⁹ = 66200821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66201313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19791 + ... + 22892.

It is an arithmetic number, because the mean of its divisors is an integer number (6146496).

Almost surely, 2^66201333 is an apocalyptic number.

It is an amenable number.

66201333 is a deficient number, since it is larger than the sum of its proper divisors (32142603).

66201333 is a wasteful number, since it uses less digits than its factorization.

66201333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42744.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 66201333 is about 8136.4201587676. The cubic root of 66201333 is about 404.5345116810.

Adding to 66201333 its reverse (33310266), we get a palindrome (99511599).

The spelling of 66201333 in words is "sixty-six million, two hundred one thousand, three hundred thirty-three".