11555323542 has 32 divisors (see below), whose sum is σ = 29346854400. Its totient is φ = 3301520904.

The previous prime is 11555323541. The next prime is 11555323553. The reversal of 11555323542 is 24532355511.

11555323542 is a `hidden beast` number, since 1 + 1 + 55 + 532 + 35 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11555323497 and 11555323506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555323541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15284442 + ... + 15285197.

It is an arithmetic number, because the mean of its divisors is an integer number (917089200).

Almost surely, 2^11555323542 is an apocalyptic number.

11555323542 is an abundant number, since it is smaller than the sum of its proper divisors (17791530858).

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

11555323542 is a wasteful number, since it uses less digits than its factorization.

11555323542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30569657 (or 30569651 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 11555323542 in words is "eleven billion, five hundred fifty-five million, three hundred twenty-three thousand, five hundred forty-two".