66600232 has 8 divisors (see below), whose sum is σ = 124875450. Its totient is φ = 33300112.

The previous prime is 66600229. The next prime is 66600241. The reversal of 66600232 is 23200666.

It can be written as a sum of positive squares in only one way, i.e., 61873956 + 4726276 = 7866^2 + 2174^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 66600197 and 66600206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4162507 + ... + 4162522.

Almost surely, 2^66600232 is an apocalyptic number.

It is an amenable number.

66600232 is a deficient number, since it is larger than the sum of its proper divisors (58275218).

66600232 is a wasteful number, since it uses less digits than its factorization.

66600232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325035 (or 8325031 counting only the distinct ones).

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

The square root of 66600232 is about 8160.8965193782. The cubic root of 66600232 is about 405.3453985857.

Adding to 66600232 its reverse (23200666), we get a palindrome (89800898).

The spelling of 66600232 in words is "sixty-six million, six hundred thousand, two hundred thirty-two".