66612332 has 12 divisors (see below), whose sum is σ = 119282856. Its totient is φ = 32531520.

The previous prime is 66612323. The next prime is 66612349. The reversal of 66612332 is 23321666.

It is a junction number, because it is equal to n+sod(n) for n = 66612295 and 66612304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193469 + ... + 193812.

It is an arithmetic number, because the mean of its divisors is an integer number (9940238).

Almost surely, 2^66612332 is an apocalyptic number.

It is an amenable number.

66612332 is a deficient number, since it is larger than the sum of its proper divisors (52670524).

66612332 is a wasteful number, since it uses less digits than its factorization.

66612332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387328 (or 387326 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 66612332 is about 8161.6378258288. The cubic root of 66612332 is about 405.3699449583.

Adding to 66612332 its reverse (23321666), we get a palindrome (89933998).

The spelling of 66612332 in words is "sixty-six million, six hundred twelve thousand, three hundred thirty-two".