66448195 has 8 divisors (see below), whose sum is σ = 86986800. Its totient is φ = 48325920.

The previous prime is 66448153. The next prime is 66448199. The reversal of 66448195 is 59184466.

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

It is a de Polignac number, because none of the positive numbers 2^k-66448195 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66448199) by changing a digit.

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, 604020 + ... + 604129.

It is an arithmetic number, because the mean of its divisors is an integer number (10873350).

Almost surely, 2^66448195 is an apocalyptic number.

66448195 is a deficient number, since it is larger than the sum of its proper divisors (20538605).

66448195 is a wasteful number, since it uses less digits than its factorization.

66448195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208165.

The product of its digits is 207360, while the sum is 43.

The square root of 66448195 is about 8151.5762279451. The cubic root of 66448195 is about 405.0367187153.

The spelling of 66448195 in words is "sixty-six million, four hundred forty-eight thousand, one hundred ninety-five".