7766648066705 has 24 divisors (see below), whose sum is σ = 10275222717312. Its totient is φ = 5631406308000.

The previous prime is 7766648066669. The next prime is 7766648066731. The reversal of 7766648066705 is 5076608466677.

It is not a de Polignac number, because 7766648066705 - 2⁶ = 7766648066641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19191641 + ... + 19592150.

It is an arithmetic number, because the mean of its divisors is an integer number (428134279888).

Almost surely, 2^{7766648066705} is an apocalyptic number.

It is an amenable number.

7766648066705 is a deficient number, since it is larger than the sum of its proper divisors (2508574650607).

7766648066705 is a wasteful number, since it uses less digits than its factorization.

7766648066705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38784149 (or 38784138 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 68.

The spelling of 7766648066705 in words is "seven trillion, seven hundred sixty-six billion, six hundred forty-eight million, sixty-six thousand, seven hundred five".