11101680 has 120 divisors (see below), whose sum is σ = 39519792. Its totient is φ = 2783232.

The previous prime is 11101679. The next prime is 11101703. The reversal of 11101680 is 8610111.

11101680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11787 + ... + 12693.

Almost surely, 2^11101680 is an apocalyptic number.

11101680 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 11101680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19759896).

11101680 is an abundant number, since it is smaller than the sum of its proper divisors (28418112).

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

11101680 is a wasteful number, since it uses less digits than its factorization.

11101680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 11101680 is about 3331.9183663469. The cubic root of 11101680 is about 223.0811638573.

Adding to 11101680 its reverse (8610111), we get a palindrome (19711791).

It can be divided in two parts, 11101 and 680, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 11101680 in words is "eleven million, one hundred one thousand, six hundred eighty".