66284315 has 8 divisors (see below), whose sum is σ = 79597728. Its totient is φ = 52989760.

The previous prime is 66284269. The next prime is 66284327. The reversal of 66284315 is 51348266.

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

It is not a de Polignac number, because 66284315 - 2⁸ = 66284059 is a prime.

It is a super-2 number, since 2×66284315² = 8787220830038450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 4754 + ... + 12456.

It is an arithmetic number, because the mean of its divisors is an integer number (9949716).

Almost surely, 2^66284315 is an apocalyptic number.

66284315 is a deficient number, since it is larger than the sum of its proper divisors (13313413).

66284315 is a wasteful number, since it uses less digits than its factorization.

66284315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429.

The product of its digits is 34560, while the sum is 35.

The square root of 66284315 is about 8141.5179788538. The cubic root of 66284315 is about 404.7034663180.

The spelling of 66284315 in words is "sixty-six million, two hundred eighty-four thousand, three hundred fifteen".