11091708128 has 48 divisors (see below), whose sum is σ = 23032800000. Its totient is φ = 5243294592.

The previous prime is 11091708119. The next prime is 11091708149. The reversal of 11091708128 is 82180719011.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 11091708091 and 11091708100.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 285113 + ... + 321671.

It is an arithmetic number, because the mean of its divisors is an integer number (479850000).

Almost surely, 2^11091708128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11091708128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11516400000).

11091708128 is an abundant number, since it is smaller than the sum of its proper divisors (11941091872).

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

11091708128 is a wasteful number, since it uses less digits than its factorization.

11091708128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37087 (or 37079 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 38.

The spelling of 11091708128 in words is "eleven billion, ninety-one million, seven hundred eight thousand, one hundred twenty-eight".