66202196 has 6 divisors (see below), whose sum is σ = 115853850. Its totient is φ = 33101096.

The previous prime is 66202163. The next prime is 66202207. The reversal of 66202196 is 69120266.

66202196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 22905796 = 6580^2 + 4786^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275271 + ... + 8275278.

It is an arithmetic number, because the mean of its divisors is an integer number (19308975).

Almost surely, 2^66202196 is an apocalyptic number.

It is an amenable number.

66202196 is a deficient number, since it is larger than the sum of its proper divisors (49651654).

66202196 is a wasteful number, since it uses less digits than its factorization.

66202196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16550553 (or 16550551 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 66202196 is about 8136.4731917459. The cubic root of 66202196 is about 404.5362695095.

The spelling of 66202196 in words is "sixty-six million, two hundred two thousand, one hundred ninety-six".