66744228096 has 1080 divisors, whose sum is σ = 258942292224. Its totient is φ = 16930529280.

The previous prime is 66744228043. The next prime is 66744228137. The reversal of 66744228096 is 69082244766.

66744228096 is a `hidden beast` number, since 66 + 74 + 422 + 8 + 0 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 409473711 + ... + 409473873.

Almost surely, 2^66744228096 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 66744228096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129471146112).

66744228096 is an abundant number, since it is smaller than the sum of its proper divisors (192198064128).

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

66744228096 is a wasteful number, since it uses less digits than its factorization.

66744228096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 66744228096 in words is "sixty-six billion, seven hundred forty-four million, two hundred twenty-eight thousand, ninety-six".