135568013580 has 144 divisors (see below), whose sum is σ = 444995276544. Its totient is φ = 34579638720.

The previous prime is 135568013573. The next prime is 135568013591. The reversal of 135568013580 is 85310865531.

135568013580 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 68 + 0 + 1 + 3 + 580 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 494626 + ... + 718185.

It is an arithmetic number, because the mean of its divisors is an integer number (3090244976).

Almost surely, 2^135568013580 is an apocalyptic number.

135568013580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135568013580 is an abundant number, since it is smaller than the sum of its proper divisors (309427262964).

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

135568013580 is a wasteful number, since it uses less digits than its factorization.

135568013580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212858 (or 1212844 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 135568013580 in words is "one hundred thirty-five billion, five hundred sixty-eight million, thirteen thousand, five hundred eighty".