135662660225 has 12 divisors (see below), whose sum is σ = 168706498224. Its totient is φ = 108217354320.

The previous prime is 135662660201. The next prime is 135662660251. The reversal of 135662660225 is 522066266531.

It is not a de Polignac number, because 135662660225 - 2²⁰ = 135661611649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7810499 + ... + 7827848.

It is an arithmetic number, because the mean of its divisors is an integer number (14058874852).

Almost surely, 2^135662660225 is an apocalyptic number.

It is an amenable number.

135662660225 is a deficient number, since it is larger than the sum of its proper divisors (33043837999).

135662660225 is a wasteful number, since it uses less digits than its factorization.

135662660225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15638704 (or 15638699 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 135662660225 in words is "one hundred thirty-five billion, six hundred sixty-two million, six hundred sixty thousand, two hundred twenty-five".