11155263948 has 144 divisors (see below), whose sum is σ = 30761902080. Its totient is φ = 3527846784.

The previous prime is 11155263841. The next prime is 11155263961. The reversal of 11155263948 is 84936255111.

It is a happy number.

11155263948 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 5 + 2 + 639 + 4 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2837248 + ... + 2841176.

It is an arithmetic number, because the mean of its divisors is an integer number (213624320).

Almost surely, 2^11155263948 is an apocalyptic number.

11155263948 is a gapful number since it is divisible by the number (18) 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 11155263948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15380951040).

11155263948 is an abundant number, since it is smaller than the sum of its proper divisors (19606638132).

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

11155263948 is a wasteful number, since it uses less digits than its factorization.

11155263948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098 (or 4084 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 11155263948 in words is "eleven billion, one hundred fifty-five million, two hundred sixty-three thousand, nine hundred forty-eight".