66004745184 has 576 divisors, whose sum is σ = 238091918400. Its totient is φ = 17703899136.

The previous prime is 66004745179. The next prime is 66004745197. The reversal of 66004745184 is 48154740066.

66004745184 is a `hidden beast` number, since 6 + 60 + 0 + 4 + 74 + 518 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45425802 + ... + 45427254.

It is an arithmetic number, because the mean of its divisors is an integer number (413354025).

Almost surely, 2^66004745184 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 66004745184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119045959200).

66004745184 is an abundant number, since it is smaller than the sum of its proper divisors (172087173216).

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

66004745184 is a wasteful number, since it uses less digits than its factorization.

66004745184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 66004745184 in words is "sixty-six billion, four million, seven hundred forty-five thousand, one hundred eighty-four".