66068803 has 4 divisors (see below), whose sum is σ = 66102520. Its totient is φ = 66035088.

The previous prime is 66068777. The next prime is 66068809. The reversal of 66068803 is 30886066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66068803 - 2⁵ = 66068771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66068809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13725 + ... + 17902.

It is an arithmetic number, because the mean of its divisors is an integer number (16525630).

Almost surely, 2^66068803 is an apocalyptic number.

66068803 is a deficient number, since it is larger than the sum of its proper divisors (33717).

66068803 is a wasteful number, since it uses less digits than its factorization.

66068803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33716.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 66068803 is about 8128.2718335449. The cubic root of 66068803 is about 404.2643823015.

The spelling of 66068803 in words is "sixty-six million, sixty-eight thousand, eight hundred three".