135500520000 has 560 divisors, whose sum is σ = 462252681792. Its totient is φ = 35005440000.

The previous prime is 135500519977. The next prime is 135500520013. The reversal of 135500520000 is 25005531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 783239914 + ... + 783240086.

Almost surely, 2^135500520000 is an apocalyptic number.

135500520000 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 135500520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231126340896).

135500520000 is an abundant number, since it is smaller than the sum of its proper divisors (326752161792).

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

135500520000 is a wasteful number, since it uses less digits than its factorization.

135500520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

Adding to 135500520000 its reverse (25005531), we get a palindrome (135525525531).

The spelling of 135500520000 in words is "one hundred thirty-five billion, five hundred million, five hundred twenty thousand".