66383001011712 has 720 divisors, whose sum is σ = 229958301101760. Its totient is φ = 16949957713920.

The previous prime is 66383001011711. The next prime is 66383001011731. The reversal of 66383001011712 is 21711010038366.

It is a super-2 number, since 2×66383001011712² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66383001011711) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 537247923 + ... + 537371469.

It is an arithmetic number, because the mean of its divisors is an integer number (319386529308).

Almost surely, 2^{66383001011712} 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 66383001011712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114979150550880).

66383001011712 is an abundant number, since it is smaller than the sum of its proper divisors (163575300090048).

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

66383001011712 is a wasteful number, since it uses less digits than its factorization.

66383001011712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123663 (or 123629 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 66383001011712 in words is "sixty-six trillion, three hundred eighty-three billion, one million, eleven thousand, seven hundred twelve".