11000155600 has 120 divisors (see below), whose sum is σ = 30267656000. Its totient is φ = 3763445760.

The previous prime is 11000155597. The next prime is 11000155601. The reversal of 11000155600 is 655100011.

It is a super-2 number, since 2×11000155600² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000155601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1393264 + ... + 1401136.

Almost surely, 2^11000155600 is an apocalyptic number.

11000155600 is a gapful number since it is divisible by the number (10) 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 11000155600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15133828000).

11000155600 is an abundant number, since it is smaller than the sum of its proper divisors (19267500400).

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

11000155600 is a wasteful number, since it uses less digits than its factorization.

11000155600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8397 (or 8386 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 11000155600 its reverse (655100011), we get a palindrome (11655255611).

The spelling of 11000155600 in words is "eleven billion, one hundred fifty-five thousand, six hundred".