66632732 has 24 divisors (see below), whose sum is σ = 118540800. Its totient is φ = 32767856.

The previous prime is 66632729. The next prime is 66632759. The reversal of 66632732 is 23723666.

It is a junction number, because it is equal to n+sod(n) for n = 66632692 and 66632701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138869 + ... + 139347.

It is an arithmetic number, because the mean of its divisors is an integer number (4939200).

Almost surely, 2^66632732 is an apocalyptic number.

It is an amenable number.

66632732 is a deficient number, since it is larger than the sum of its proper divisors (51908068).

66632732 is a wasteful number, since it uses less digits than its factorization.

66632732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 983 counting only the distinct ones).

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

The square root of 66632732 is about 8162.8874793176. The cubic root of 66632732 is about 405.4113221958.

The spelling of 66632732 in words is "sixty-six million, six hundred thirty-two thousand, seven hundred thirty-two".