7666660707 has 8 divisors (see below), whose sum is σ = 10239225360. Its totient is φ = 5102601600.

The previous prime is 7666660693. The next prime is 7666660709. The reversal of 7666660707 is 7070666667.

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

It is not a de Polignac number, because 7666660707 - 2⁷ = 7666660579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7666660707.

It is not an unprimeable number, because it can be changed into a prime (7666660709) 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, 2124282 + ... + 2127887.

It is an arithmetic number, because the mean of its divisors is an integer number (1279903170).

Almost surely, 2^7666660707 is an apocalyptic number.

7666660707 is a deficient number, since it is larger than the sum of its proper divisors (2572564653).

7666660707 is a wasteful number, since it uses less digits than its factorization.

7666660707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252773.

The product of its (nonzero) digits is 2667168, while the sum is 51.

The square root of 7666660707 is about 87559.4695449898. The cubic root of 7666660707 is about 1971.8267223016.

The spelling of 7666660707 in words is "seven billion, six hundred sixty-six million, six hundred sixty thousand, seven hundred seven".