6666117205 has 8 divisors (see below), whose sum is σ = 8726553504. Its totient is φ = 4848085200.

The previous prime is 6666117203. The next prime is 6666117217. The reversal of 6666117205 is 5027116666.

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

It is not a de Polignac number, because 6666117205 - 2¹ = 6666117203 is a prime.

It is a super-3 number, since 3×6666117205³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666117203) 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, 60601011 + ... + 60601120.

It is an arithmetic number, because the mean of its divisors is an integer number (1090819188).

Almost surely, 2^6666117205 is an apocalyptic number.

It is an amenable number.

6666117205 is a deficient number, since it is larger than the sum of its proper divisors (2060436299).

6666117205 is a wasteful number, since it uses less digits than its factorization.

6666117205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121202147.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 6666117205 is about 81646.2932716483. The cubic root of 6666117205 is about 1882.0203500190.

The spelling of 6666117205 in words is "six billion, six hundred sixty-six million, one hundred seventeen thousand, two hundred five".