66244132 has 6 divisors (see below), whose sum is σ = 115927238. Its totient is φ = 33122064.

The previous prime is 66244111. The next prime is 66244159. The reversal of 66244132 is 23144266.

It can be written as a sum of positive squares in only one way, i.e., 51065316 + 15178816 = 7146^2 + 3896^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66244132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8280513 + ... + 8280520.

Almost surely, 2^66244132 is an apocalyptic number.

It is an amenable number.

66244132 is a deficient number, since it is larger than the sum of its proper divisors (49683106).

66244132 is a wasteful number, since it uses less digits than its factorization.

66244132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16561037 (or 16561035 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 66244132 is about 8139.0498216929. The cubic root of 66244132 is about 404.6216697589.

Adding to 66244132 its reverse (23144266), we get a palindrome (89388398).

The spelling of 66244132 in words is "sixty-six million, two hundred forty-four thousand, one hundred thirty-two".