133681588808 has 8 divisors (see below), whose sum is σ = 250652979030. Its totient is φ = 66840794400.

The previous prime is 133681588783. The next prime is 133681588829. The reversal of 133681588808 is 808885186331.

It can be written as a sum of positive squares in only one way, i.e., 133255661764 + 425927044 = 365042^2 + 20638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8355099293 + ... + 8355099308.

Almost surely, 2^133681588808 is an apocalyptic number.

It is an amenable number.

133681588808 is a deficient number, since it is larger than the sum of its proper divisors (116971390222).

133681588808 is a wasteful number, since it uses less digits than its factorization.

133681588808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16710198607 (or 16710198603 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 59.

The spelling of 133681588808 in words is "one hundred thirty-three billion, six hundred eighty-one million, five hundred eighty-eight thousand, eight hundred eight".