66306332 has 24 divisors (see below), whose sum is σ = 122798592. Its totient is φ = 31262000.

The previous prime is 66306311. The next prime is 66306337. The reversal of 66306332 is 23360366.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66306295 and 66306304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66306337) 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, 1457 + ... + 11607.

It is an arithmetic number, because the mean of its divisors is an integer number (5116608).

Almost surely, 2^66306332 is an apocalyptic number.

It is an amenable number.

66306332 is a deficient number, since it is larger than the sum of its proper divisors (56492260).

66306332 is a wasteful number, since it uses less digits than its factorization.

66306332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249 (or 10247 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

The square root of 66306332 is about 8142.8700100149. The cubic root of 66306332 is about 404.7482701294.

Adding to 66306332 its reverse (23360366), we get a palindrome (89666698).

The spelling of 66306332 in words is "sixty-six million, three hundred six thousand, three hundred thirty-two".