766668588686 has 32 divisors (see below), whose sum is σ = 1544059819008. Its totient is φ = 275724966240.

The previous prime is 766668588671. The next prime is 766668588691. The reversal of 766668588686 is 686885866667.

It is a self number, because there is not a number n which added to its sum of digits gives 766668588686.

It is a congruent number.

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, 191473670 + ... + 191477673.

It is an arithmetic number, because the mean of its divisors is an integer number (48251869344).

Almost surely, 2^766668588686 is an apocalyptic number.

766668588686 is an abundant number, since it is smaller than the sum of its proper divisors (777391230322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

766668588686 is a wasteful number, since it uses less digits than its factorization.

766668588686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382951376.

The product of its digits is 6688604160, while the sum is 80.

The spelling of 766668588686 in words is "seven hundred sixty-six billion, six hundred sixty-eight million, five hundred eighty-eight thousand, six hundred eighty-six".