66666282 has 64 divisors (see below), whose sum is σ = 149071104. Its totient is φ = 19768320.

The previous prime is 66666277. The next prime is 66666289. The reversal of 66666282 is 28266666.

It is a super-3 number, since 3×66666282³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (66666289) 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 31 ways as a sum of consecutive naturals, for example, 368232 + ... + 368412.

It is an arithmetic number, because the mean of its divisors is an integer number (2329236).

Almost surely, 2^66666282 is an apocalyptic number.

66666282 is an abundant number, since it is smaller than the sum of its proper divisors (82404822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66666282 is a wasteful number, since it uses less digits than its factorization.

66666282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its digits is 248832, while the sum is 42.

The square root of 66666282 is about 8164.9422533169. The cubic root of 66666282 is about 405.4793531633.

The spelling of 66666282 in words is "sixty-six million, six hundred sixty-six thousand, two hundred eighty-two".