66043283 has 4 divisors (see below), whose sum is σ = 69928200. Its totient is φ = 62158368.

The previous prime is 66043279. The next prime is 66043309. The reversal of 66043283 is 38234066.

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 66043283 - 2² = 66043279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66043273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942433 + ... + 1942466.

It is an arithmetic number, because the mean of its divisors is an integer number (17482050).

Almost surely, 2^66043283 is an apocalyptic number.

66043283 is a deficient number, since it is larger than the sum of its proper divisors (3884917).

66043283 is a wasteful number, since it uses less digits than its factorization.

66043283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884916.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66043283 is about 8126.7018525353. The cubic root of 66043283 is about 404.2123246727.

The spelling of 66043283 in words is "sixty-six million, forty-three thousand, two hundred eighty-three".