6765600665 has 8 divisors (see below), whose sum is σ = 8209942920. Its totient is φ = 5351665792.

The previous prime is 6765600643. The next prime is 6765600671. The reversal of 6765600665 is 5660065676.

It can be written as a sum of positive squares in 4 ways, for example, as 2676496 + 6762924169 = 1636^2 + 82237^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6765600665 - 2⁶ = 6765600601 is a prime.

It is a super-4 number, since 4×6765600665⁴ (a number of 40 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7601354 + ... + 7602243.

It is an arithmetic number, because the mean of its divisors is an integer number (1026242865).

Almost surely, 2^6765600665 is an apocalyptic number.

It is an amenable number.

6765600665 is a deficient number, since it is larger than the sum of its proper divisors (1444342255).

6765600665 is a wasteful number, since it uses less digits than its factorization.

6765600665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15203691.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The square root of 6765600665 is about 82253.2714546966. The cubic root of 6765600665 is about 1891.3364254273.

The spelling of 6765600665 in words is "six billion, seven hundred sixty-five million, six hundred thousand, six hundred sixty-five".