66036198 has 16 divisors (see below), whose sum is σ = 134564976. Its totient is φ = 21596640.

The previous prime is 66036167. The next prime is 66036209. The reversal of 66036198 is 89163066.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103513 + ... + 104148.

It is an arithmetic number, because the mean of its divisors is an integer number (8410311).

Almost surely, 2^66036198 is an apocalyptic number.

66036198 is an abundant number, since it is smaller than the sum of its proper divisors (68528778).

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

66036198 is a wasteful number, since it uses less digits than its factorization.

66036198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207719.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 66036198 is about 8126.2659321487. The cubic root of 66036198 is about 404.1978697748.

The spelling of 66036198 in words is "sixty-six million, thirty-six thousand, one hundred ninety-eight".