133681608116 has 18 divisors (see below), whose sum is σ = 272137559778. Its totient is φ = 57292117680.

The previous prime is 133681608091. The next prime is 133681608133. The reversal of 133681608116 is 611806186331.

It can be written as a sum of positive squares in only one way, i.e., 129597120016 + 4084488100 = 359996^2 + 63910^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341024315 + ... + 341024706.

It is an arithmetic number, because the mean of its divisors is an integer number (15118753321).

Almost surely, 2^133681608116 is an apocalyptic number.

It is an amenable number.

133681608116 is an abundant number, since it is smaller than the sum of its proper divisors (138455951662).

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

133681608116 is a wasteful number, since it uses less digits than its factorization.

133681608116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682049039 (or 682049030 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 133681608116 in words is "one hundred thirty-three billion, six hundred eighty-one million, six hundred eight thousand, one hundred sixteen".