66284868 has 24 divisors (see below), whose sum is σ = 166562368. Its totient is φ = 20395296.

The previous prime is 66284861. The next prime is 66284893. The reversal of 66284868 is 86848266.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66284861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212296 + ... + 212607.

Almost surely, 2^66284868 is an apocalyptic number.

It is an amenable number.

66284868 is an abundant number, since it is smaller than the sum of its proper divisors (100277500).

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

66284868 is a wasteful number, since it uses less digits than its factorization.

66284868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424923 (or 424921 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 66284868 is about 8141.5519405086. The cubic root of 66284868 is about 404.7045917748.

The spelling of 66284868 in words is "sixty-six million, two hundred eighty-four thousand, eight hundred sixty-eight".