66009932 has 12 divisors (see below), whose sum is σ = 115649520. Its totient is φ = 32967216.

The previous prime is 66009917. The next prime is 66009953. The reversal of 66009932 is 23990066.

It is a super-2 number, since 2×66009932² = 8714622245289248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66009892 and 66009901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5303 + ... + 12654.

It is an arithmetic number, because the mean of its divisors is an integer number (9637460).

Almost surely, 2^66009932 is an apocalyptic number.

It is an amenable number.

66009932 is a deficient number, since it is larger than the sum of its proper divisors (49639588).

66009932 is a wasteful number, since it uses less digits than its factorization.

66009932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18880 (or 18878 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 66009932 is about 8124.6496539851. The cubic root of 66009932 is about 404.1442725585.

Adding to 66009932 its reverse (23990066), we get a palindrome (89999998).

The spelling of 66009932 in words is "sixty-six million, nine thousand, nine hundred thirty-two".