133680185716 has 24 divisors (see below), whose sum is σ = 291665860416. Its totient is φ = 52083189120.

The previous prime is 133680185669. The next prime is 133680185759. The reversal of 133680185716 is 617581086331.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 133680185716.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217012981 + ... + 217013596.

It is an arithmetic number, because the mean of its divisors is an integer number (12152744184).

Almost surely, 2^133680185716 is an apocalyptic number.

It is an amenable number.

133680185716 is an abundant number, since it is smaller than the sum of its proper divisors (157985674700).

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

133680185716 is a wasteful number, since it uses less digits than its factorization.

133680185716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434026599 (or 434026597 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 133680185716 in words is "one hundred thirty-three billion, six hundred eighty million, one hundred eighty-five thousand, seven hundred sixteen".