66884060 has 48 divisors (see below), whose sum is σ = 144907392. Its totient is φ = 25920000.

The previous prime is 66884057. The next prime is 66884071. The reversal of 66884060 is 6048866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88685 + ... + 89435.

It is an arithmetic number, because the mean of its divisors is an integer number (3018904).

Almost surely, 2^66884060 is an apocalyptic number.

It is an amenable number.

66884060 is an abundant number, since it is smaller than the sum of its proper divisors (78023332).

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

66884060 is a wasteful number, since it uses less digits than its factorization.

66884060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 66884060 is about 8178.2675427012. The cubic root of 66884060 is about 405.9203982195.

The spelling of 66884060 in words is "sixty-six million, eight hundred eighty-four thousand, sixty".