66506032 has 10 divisors (see below), whose sum is σ = 128855468. Its totient is φ = 33253008.

The previous prime is 66506029. The next prime is 66506047. The reversal of 66506032 is 23060566.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078298 + ... + 2078329.

Almost surely, 2^66506032 is an apocalyptic number.

It is an amenable number.

66506032 is a deficient number, since it is larger than the sum of its proper divisors (62349436).

66506032 is a wasteful number, since it uses less digits than its factorization.

66506032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156635 (or 4156629 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 66506032 is about 8155.1230524131. The cubic root of 66506032 is about 405.1542002873.

Adding to 66506032 its reverse (23060566), we get a palindrome (89566598).

The spelling of 66506032 in words is "sixty-six million, five hundred six thousand, thirty-two".