1066666423368 has 512 divisors, whose sum is σ = 3611846246400. Its totient is φ = 254441088000.

The previous prime is 1066666423363. The next prime is 1066666423373. The reversal of 1066666423368 is 8633246666601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1066666423363) and next prime (1066666423373).

It is a super-2 number, since 2×1066666423368² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (1066666423363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 926729593 + ... + 926730743.

It is an arithmetic number, because the mean of its divisors is an integer number (7054387200).

Almost surely, 2^{1066666423368} 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 1066666423368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805923123200).

1066666423368 is an abundant number, since it is smaller than the sum of its proper divisors (2545179823032).

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

1066666423368 is a wasteful number, since it uses less digits than its factorization.

1066666423368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 57.

The spelling of 1066666423368 in words is "one trillion, sixty-six billion, six hundred sixty-six million, four hundred twenty-three thousand, three hundred sixty-eight".