66734046373320 has 288 divisors, whose sum is σ = 229242361420800. Its totient is φ = 17459969769216.

The previous prime is 66734046373283. The next prime is 66734046373321. The reversal of 66734046373320 is 2337364043766.

66734046373320 is a `hidden beast` number, since 6 + 6 + 73 + 40 + 463 + 73 + 3 + 2 + 0 = 666.

66734046373320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (66734046373321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26081401 + ... + 28525559.

It is an arithmetic number, because the mean of its divisors is an integer number (795980421600).

Almost surely, 2^{66734046373320} is an apocalyptic number.

66734046373320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66734046373320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114621180710400).

66734046373320 is an abundant number, since it is smaller than the sum of its proper divisors (162508315047480).

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

66734046373320 is a wasteful number, since it uses less digits than its factorization.

66734046373320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444291 (or 2444222 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 54.

The spelling of 66734046373320 in words is "sixty-six trillion, seven hundred thirty-four billion, forty-six million, three hundred seventy-three thousand, three hundred twenty".