66000332 has 6 divisors (see below), whose sum is σ = 115500588. Its totient is φ = 33000164.

The previous prime is 66000331. The next prime is 66000349. The reversal of 66000332 is 23300066.

It is a happy number.

It is a super-2 number, since 2×66000332² = 8712087648220448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66000331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250038 + ... + 8250045.

It is an arithmetic number, because the mean of its divisors is an integer number (19250098).

Almost surely, 2^66000332 is an apocalyptic number.

It is an amenable number.

66000332 is a deficient number, since it is larger than the sum of its proper divisors (49500256).

66000332 is a wasteful number, since it uses less digits than its factorization.

66000332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500087 (or 16500085 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 66000332 is about 8124.0588377978. The cubic root of 66000332 is about 404.1246796831.

Adding to 66000332 its reverse (23300066), we get a palindrome (89300398).

The spelling of 66000332 in words is "sixty-six million, three hundred thirty-two", and thus it is an aban number.