135720908696 has 8 divisors (see below), whose sum is σ = 254476703820. Its totient is φ = 67860454344.

The previous prime is 135720908689. The next prime is 135720908717. The reversal of 135720908696 is 696809027531.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8482556786 + ... + 8482556801.

Almost surely, 2^135720908696 is an apocalyptic number.

It is an amenable number.

135720908696 is a deficient number, since it is larger than the sum of its proper divisors (118755795124).

135720908696 is a wasteful number, since it uses less digits than its factorization.

135720908696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16965113593 (or 16965113589 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 135720908696 in words is "one hundred thirty-five billion, seven hundred twenty million, nine hundred eight thousand, six hundred ninety-six".