135501205500520 has 16 divisors (see below), whose sum is σ = 304877712376260. Its totient is φ = 54200482200192.

The previous prime is 135501205500517. The next prime is 135501205500559. The reversal of 135501205500520 is 25005502105531.

It can be written as a sum of positive squares in 2 ways, for example, as 135039134561956 + 462070938564 = 11620634^2 + 679758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693765068717 + ... + 1693765068796.

Almost surely, 2^{135501205500520} is an apocalyptic number.

135501205500520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135501205500520 is an abundant number, since it is smaller than the sum of its proper divisors (169376506875740).

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

135501205500520 is a wasteful number, since it uses less digits than its factorization.

135501205500520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387530137524 (or 3387530137520 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 135501205500520 in words is "one hundred thirty-five trillion, five hundred one billion, two hundred five million, five hundred thousand, five hundred twenty".