66360193 has 8 divisors (see below), whose sum is σ = 67917312. Its totient is φ = 64809216.

The previous prime is 66360157. The next prime is 66360241. The reversal of 66360193 is 39106366.

It is a happy number.

66360193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66360193 - 2²¹ = 64263041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66360113) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 25896 + ... + 28342.

It is an arithmetic number, because the mean of its divisors is an integer number (8489664).

Almost surely, 2^66360193 is an apocalyptic number.

It is an amenable number.

66360193 is a deficient number, since it is larger than the sum of its proper divisors (1557119).

66360193 is a wasteful number, since it uses less digits than its factorization.

66360193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 66360193 is about 8146.1765878233. The cubic root of 66360193 is about 404.8578335541.

The spelling of 66360193 in words is "sixty-six million, three hundred sixty thousand, one hundred ninety-three".