135355102520 has 128 divisors (see below), whose sum is σ = 338207788800. Its totient is φ = 48336921600.

The previous prime is 135355102517. The next prime is 135355102559. The reversal of 135355102520 is 25201553531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34291187 + ... + 34295133.

It is an arithmetic number, because the mean of its divisors is an integer number (2642248350).

Almost surely, 2^135355102520 is an apocalyptic number.

135355102520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135355102520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169103894400).

135355102520 is an abundant number, since it is smaller than the sum of its proper divisors (202852686280).

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

135355102520 is a wasteful number, since it uses less digits than its factorization.

135355102520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349 (or 5345 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 135355102520 in words is "one hundred thirty-five billion, three hundred fifty-five million, one hundred two thousand, five hundred twenty".