6600066745 has 8 divisors (see below), whose sum is σ = 7920521280. Its totient is φ = 5279759280.

The previous prime is 6600066743. The next prime is 6600066751. The reversal of 6600066745 is 5476600066.

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

It is not a de Polignac number, because 6600066745 - 2¹ = 6600066743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6600066698 and 6600066707.

It is not an unprimeable number, because it can be changed into a prime (6600066743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134500 + ... + 176890.

It is an arithmetic number, because the mean of its divisors is an integer number (990065160).

Almost surely, 2^6600066745 is an apocalyptic number.

It is an amenable number.

6600066745 is a deficient number, since it is larger than the sum of its proper divisors (1320454535).

6600066745 is a wasteful number, since it uses less digits than its factorization.

6600066745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73535.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 6600066745 is about 81240.7948323993. The cubic root of 6600066745 is about 1875.7837785156.

The spelling of 6600066745 in words is "six billion, six hundred million, sixty-six thousand, seven hundred forty-five".