66459008 has 96 divisors (see below), whose sum is σ = 166590480. Its totient is φ = 25850880.

The previous prime is 66459007. The next prime is 66459011. The reversal of 66459008 is 80095466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66459007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108110 + ... + 108722.

Almost surely, 2^66459008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66459008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83295240).

66459008 is an abundant number, since it is smaller than the sum of its proper divisors (100131472).

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

66459008 is a wasteful number, since it uses less digits than its factorization.

66459008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 66459008 is about 8152.2394469250. The cubic root of 66459008 is about 405.0586878322.

The spelling of 66459008 in words is "sixty-six million, four hundred fifty-nine thousand, eight".