66248195 has 16 divisors (see below), whose sum is σ = 85784832. Its totient is φ = 48823680.

The previous prime is 66248123. The next prime is 66248197. The reversal of 66248195 is 59184266.

It is a happy number.

It is not a de Polignac number, because 66248195 - 2⁸ = 66247939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66248197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55505 + ... + 56685.

It is an arithmetic number, because the mean of its divisors is an integer number (5361552).

Almost surely, 2^66248195 is an apocalyptic number.

66248195 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

66248195 is a deficient number, since it is larger than the sum of its proper divisors (19536637).

66248195 is a wasteful number, since it uses less digits than its factorization.

66248195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062.

The product of its digits is 103680, while the sum is 41.

The square root of 66248195 is about 8139.2994170260. The cubic root of 66248195 is about 404.6299419091.

The spelling of 66248195 in words is "sixty-six million, two hundred forty-eight thousand, one hundred ninety-five".