11155479552 has 264 divisors, whose sum is σ = 37574732000. Its totient is φ = 3186376704.

The previous prime is 11155479529. The next prime is 11155479553. The reversal of 11155479552 is 25597455111.

11155479552 is a `hidden beast` number, since 1 + 1 + 1 + 55 + 47 + 9 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11155479498 and 11155479507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155479553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3159324 + ... + 3162852.

Almost surely, 2^11155479552 is an apocalyptic number.

11155479552 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 11155479552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18787366000).

11155479552 is an abundant number, since it is smaller than the sum of its proper divisors (26419252448).

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

11155479552 is an equidigital number, since it uses as much as digits as its factorization.

11155479552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576 (or 3541 counting only the distinct ones).

The product of its digits is 315000, while the sum is 45.

The spelling of 11155479552 in words is "eleven billion, one hundred fifty-five million, four hundred seventy-nine thousand, five hundred fifty-two".