66672332 has 12 divisors (see below), whose sum is σ = 116871216. Its totient is φ = 33280560.

The previous prime is 66672269. The next prime is 66672401. The reversal of 66672332 is 23327666.

It is a junction number, because it is equal to n+sod(n) for n = 66672292 and 66672301.

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, 11144 + ... + 16047.

It is an arithmetic number, because the mean of its divisors is an integer number (9739268).

Almost surely, 2^66672332 is an apocalyptic number.

It is an amenable number.

66672332 is a deficient number, since it is larger than the sum of its proper divisors (50198884).

66672332 is a wasteful number, since it uses less digits than its factorization.

66672332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27808 (or 27806 counting only the distinct ones).

The product of its digits is 54432, while the sum is 35.

The square root of 66672332 is about 8165.3127313043. The cubic root of 66672332 is about 405.4916186135.

Adding to 66672332 its reverse (23327666), we get a palindrome (89999998).

The spelling of 66672332 in words is "sixty-six million, six hundred seventy-two thousand, three hundred thirty-two".