1067728625666 has 8 divisors (see below), whose sum is σ = 1602211083264. Its totient is φ = 533658264580.

The previous prime is 1067728625603. The next prime is 1067728625669. The reversal of 1067728625666 is 6665268277601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1067728625666² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1067728625599 and 1067728625608.

It is not an unprimeable number, because it can be changed into a prime (1067728625669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103017650 + ... + 103028013.

It is an arithmetic number, because the mean of its divisors is an integer number (200276385408).

Almost surely, 2^{1067728625666} is an apocalyptic number.

1067728625666 is a deficient number, since it is larger than the sum of its proper divisors (534482457598).

1067728625666 is a wasteful number, since it uses less digits than its factorization.

1067728625666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206048256.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 1067728625666 in words is "one trillion, sixty-seven billion, seven hundred twenty-eight million, six hundred twenty-five thousand, six hundred sixty-six".