66132733 has 4 divisors (see below), whose sum is σ = 66185020. Its totient is φ = 66080448.

The previous prime is 66132721. The next prime is 66132739. The reversal of 66132733 is 33723166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33723166 = 2 ⋅16861583.

It can be written as a sum of positive squares in 2 ways, for example, as 55905529 + 10227204 = 7477^2 + 3198^2 .

It is a cyclic number.

It is not a de Polignac number, because 66132733 - 2⁵ = 66132701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66132695 and 66132704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66132739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24198 + ... + 26791.

It is an arithmetic number, because the mean of its divisors is an integer number (16546255).

Almost surely, 2^66132733 is an apocalyptic number.

It is an amenable number.

66132733 is a deficient number, since it is larger than the sum of its proper divisors (52287).

66132733 is a wasteful number, since it uses less digits than its factorization.

66132733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52286.

The product of its digits is 13608, while the sum is 31.

The square root of 66132733 is about 8132.2034529394. The cubic root of 66132733 is about 404.3947327305.

Adding to 66132733 its reverse (33723166), we get a palindrome (99855899).

The spelling of 66132733 in words is "sixty-six million, one hundred thirty-two thousand, seven hundred thirty-three".