135655308218 has 8 divisors (see below), whose sum is σ = 203484528660. Its totient is φ = 67827132000.

The previous prime is 135655308179. The next prime is 135655308223. The reversal of 135655308218 is 812803556531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115364160409 + 20291147809 = 339653^2 + 142447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 346718 + ... + 625718.

Almost surely, 2^135655308218 is an apocalyptic number.

135655308218 is a deficient number, since it is larger than the sum of its proper divisors (67829220442).

135655308218 is a wasteful number, since it uses less digits than its factorization.

135655308218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522112.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 135655308218 in words is "one hundred thirty-five billion, six hundred fifty-five million, three hundred eight thousand, two hundred eighteen".