11500640255142 has 24 divisors (see below), whose sum is σ = 24919472545344. Its totient is φ = 3833328496464.

The previous prime is 11500640255141. The next prime is 11500640255147. The reversal of 11500640255142 is 24155204600511.

11500640255142 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 0 + 64 + 0 + 2 + 551 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11500640255097 and 11500640255106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11500640255141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17862838 + ... + 18495465.

It is an arithmetic number, because the mean of its divisors is an integer number (1038311356056).

Almost surely, 2^{11500640255142} is an apocalyptic number.

11500640255142 is an abundant number, since it is smaller than the sum of its proper divisors (13418832290202).

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

11500640255142 is a wasteful number, since it uses less digits than its factorization.

11500640255142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36375884 (or 36375881 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 11500640255142 its reverse (24155204600511), we get a palindrome (35655844855653).

The spelling of 11500640255142 in words is "eleven trillion, five hundred billion, six hundred forty million, two hundred fifty-five thousand, one hundred forty-two".