86696666766 has 64 divisors (see below), whose sum is σ = 193364582400. Its totient is φ = 28793255328.

The previous prime is 86696666747. The next prime is 86696666773. The reversal of 86696666766 is 66766669668.

It is a junction number, because it is equal to n+sod(n) for n = 86696666694 and 86696666703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35428555 + ... + 35431001.

It is an arithmetic number, because the mean of its divisors is an integer number (3021321600).

Almost surely, 2^86696666766 is an apocalyptic number.

86696666766 is an abundant number, since it is smaller than the sum of its proper divisors (106667915634).

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

86696666766 is a wasteful number, since it uses less digits than its factorization.

86696666766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590 (or 4584 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 72.

The spelling of 86696666766 in words is "eighty-six billion, six hundred ninety-six million, six hundred sixty-six thousand, seven hundred sixty-six".