11155325532 has 96 divisors (see below), whose sum is σ = 28745617152. Its totient is φ = 3346016256.

The previous prime is 11155325509. The next prime is 11155325537. The reversal of 11155325532 is 23552355111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11155325493 and 11155325502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155325537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1008343 + ... + 1019345.

It is an arithmetic number, because the mean of its divisors is an integer number (299433512).

Almost surely, 2^11155325532 is an apocalyptic number.

11155325532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11155325532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14372808576).

11155325532 is an abundant number, since it is smaller than the sum of its proper divisors (17590291620).

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

11155325532 is a wasteful number, since it uses less digits than its factorization.

11155325532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11187 (or 11185 counting only the distinct ones).

The product of its digits is 22500, while the sum is 33.

The spelling of 11155325532 in words is "eleven billion, one hundred fifty-five million, three hundred twenty-five thousand, five hundred thirty-two".