66284118 has 12 divisors (see below), whose sum is σ = 143615628. Its totient is φ = 22094700.

The previous prime is 66284117. The next prime is 66284123. The reversal of 66284118 is 81148266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66284117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1841208 + ... + 1841243.

It is an arithmetic number, because the mean of its divisors is an integer number (11967969).

Almost surely, 2^66284118 is an apocalyptic number.

66284118 is an abundant number, since it is smaller than the sum of its proper divisors (77331510).

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

66284118 is a wasteful number, since it uses less digits than its factorization.

66284118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682459 (or 3682456 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 66284118 is about 8141.5058803639. The cubic root of 66284118 is about 404.7030653852.

The spelling of 66284118 in words is "sixty-six million, two hundred eighty-four thousand, one hundred eighteen".