135405623142024 has 64 divisors (see below), whose sum is σ = 342049555036800. Its totient is φ = 44664446432256.

The previous prime is 135405623142017. The next prime is 135405623142047. The reversal of 135405623142024 is 420241326504531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16553409 + ... + 23341520.

It is an arithmetic number, because the mean of its divisors is an integer number (5344524297450).

Almost surely, 2^{135405623142024} is an apocalyptic number.

It is an amenable number.

135405623142024 is an abundant number, since it is smaller than the sum of its proper divisors (206643931894776).

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

135405623142024 is a wasteful number, since it uses less digits than its factorization.

135405623142024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39896414 (or 39896410 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 135405623142024 its reverse (420241326504531), we get a palindrome (555646949646555).

The spelling of 135405623142024 in words is "one hundred thirty-five trillion, four hundred five billion, six hundred twenty-three million, one hundred forty-two thousand, twenty-four".