66322132 has 6 divisors (see below), whose sum is σ = 116063738. Its totient is φ = 33161064.

The previous prime is 66322121. The next prime is 66322163. The reversal of 66322132 is 23122366.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47969476 + 18352656 = 6926^2 + 4284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66322097 and 66322106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8290263 + ... + 8290270.

Almost surely, 2^66322132 is an apocalyptic number.

It is an amenable number.

66322132 is a deficient number, since it is larger than the sum of its proper divisors (49741606).

66322132 is a wasteful number, since it uses less digits than its factorization.

66322132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16580537 (or 16580535 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 66322132 is about 8143.8401261321. The cubic root of 66322132 is about 404.7804164548.

Adding to 66322132 its reverse (23122366), we get a palindrome (89444498).

The spelling of 66322132 in words is "sixty-six million, three hundred twenty-two thousand, one hundred thirty-two".