6660774705 has 16 divisors (see below), whose sum is σ = 11477027520. Its totient is φ = 3279150528.

The previous prime is 6660774667. The next prime is 6660774719. The reversal of 6660774705 is 5074770666.

It is not a de Polignac number, because 6660774705 - 2⁹ = 6660774193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17078715 + ... + 17079104.

It is an arithmetic number, because the mean of its divisors is an integer number (717314220).

Almost surely, 2^6660774705 is an apocalyptic number.

6660774705 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6660774705 is a deficient number, since it is larger than the sum of its proper divisors (4816252815).

6660774705 is a wasteful number, since it uses less digits than its factorization.

6660774705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34157840.

The product of its (nonzero) digits is 1481760, while the sum is 48.

The square root of 6660774705 is about 81613.5693680898. The cubic root of 6660774705 is about 1881.5174395196.

The spelling of 6660774705 in words is "six billion, six hundred sixty million, seven hundred seventy-four thousand, seven hundred five".