135288080660 has 12 divisors (see below), whose sum is σ = 284104969428. Its totient is φ = 54115232256.

The previous prime is 135288080651. The next prime is 135288080677. The reversal of 135288080660 is 66080882531.

It can be written as a sum of positive squares in 2 ways, for example, as 60482548624 + 74805532036 = 245932^2 + 273506^2 .

It is a congruent number.

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, 3382201997 + ... + 3382202036.

It is an arithmetic number, because the mean of its divisors is an integer number (23675414119).

Almost surely, 2^135288080660 is an apocalyptic number.

135288080660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135288080660 is an abundant number, since it is smaller than the sum of its proper divisors (148816888768).

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

135288080660 is a wasteful number, since it uses less digits than its factorization.

135288080660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764404042 (or 6764404040 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 135288080660 in words is "one hundred thirty-five billion, two hundred eighty-eight million, eighty thousand, six hundred sixty".