136993663866 has 8 divisors (see below), whose sum is σ = 273987327744. Its totient is φ = 45664554620.

The previous prime is 136993663843. The next prime is 136993663901. The reversal of 136993663866 is 668366399631.

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

136993663866 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 136993663797 and 136993663806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11416138650 + ... + 11416138661.

It is an arithmetic number, because the mean of its divisors is an integer number (34248415968).

Almost surely, 2^136993663866 is an apocalyptic number.

136993663866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

136993663866 is a wasteful number, since it uses less digits than its factorization.

136993663866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22832277316.

The product of its digits is 136048896, while the sum is 66.

The spelling of 136993663866 in words is "one hundred thirty-six billion, nine hundred ninety-three million, six hundred sixty-three thousand, eight hundred sixty-six".