11655135580 has 24 divisors (see below), whose sum is σ = 26700856560. Its totient is φ = 4238231040.

The previous prime is 11655135571. The next prime is 11655135581. The reversal of 11655135580 is 8553155611.

11655135580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11655135581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26488725 + ... + 26489164.

It is an arithmetic number, because the mean of its divisors is an integer number (1112535690).

Almost surely, 2^11655135580 is an apocalyptic number.

11655135580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11655135580 is an abundant number, since it is smaller than the sum of its proper divisors (15045720980).

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

11655135580 is a wasteful number, since it uses less digits than its factorization.

11655135580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52977909 (or 52977907 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 11655135580 in words is "eleven billion, six hundred fifty-five million, one hundred thirty-five thousand, five hundred eighty".