11061183640 has 128 divisors (see below), whose sum is σ = 28316433600. Its totient is φ = 3854960640.

The previous prime is 11061183613. The next prime is 11061183673. The reversal of 11061183640 is 4638116011.

11061183640 = T₂₄₀ + T₂₄₁ + ... + T₄₀₄₈.

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 31 ways as a sum of consecutive naturals, for example, 2892930 + ... + 2896750.

Almost surely, 2^11061183640 is an apocalyptic number.

11061183640 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 11061183640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14158216800).

11061183640 is an abundant number, since it is smaller than the sum of its proper divisors (17255249960).

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

11061183640 is a wasteful number, since it uses less digits than its factorization.

11061183640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157 (or 4153 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 11061183640 its reverse (4638116011), we get a palindrome (15699299651).

The spelling of 11061183640 in words is "eleven billion, sixty-one million, one hundred eighty-three thousand, six hundred forty".