66500032 has 28 divisors (see below), whose sum is σ = 135184896. Its totient is φ = 32437760.

The previous prime is 66500017. The next prime is 66500051. The reversal of 66500032 is 23000566.

It is a junction number, because it is equal to n+sod(n) for n = 66499976 and 66500012.

It is a congruent number.

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, 10048 + ... + 15295.

It is an arithmetic number, because the mean of its divisors is an integer number (4828032).

Almost surely, 2^66500032 is an apocalyptic number.

It is an amenable number.

66500032 is an abundant number, since it is smaller than the sum of its proper divisors (68684864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66500032 is a wasteful number, since it uses less digits than its factorization.

66500032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25396 (or 25386 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 66500032 is about 8154.7551771957. The cubic root of 66500032 is about 405.1420159374.

Adding to 66500032 its reverse (23000566), we get a palindrome (89500598).

The spelling of 66500032 in words is "sixty-six million, five hundred thousand, thirty-two".