11033156680 has 128 divisors (see below), whose sum is σ = 31539271680. Its totient is φ = 3379138560.

The previous prime is 11033156663. The next prime is 11033156737. The reversal of 11033156680 is 8665133011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63952 + ... + 161728.

It is an arithmetic number, because the mean of its divisors is an integer number (246400560).

Almost surely, 2^11033156680 is an apocalyptic number.

11033156680 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 11033156680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15769635840).

11033156680 is an abundant number, since it is smaller than the sum of its proper divisors (20506115000).

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

11033156680 is a wasteful number, since it uses less digits than its factorization.

11033156680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97839 (or 97835 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 11033156680 its reverse (8665133011), we get a palindrome (19698289691).

The spelling of 11033156680 in words is "eleven billion, thirty-three million, one hundred fifty-six thousand, six hundred eighty".