11145842208 has 54 divisors (see below), whose sum is σ = 31701084597. Its totient is φ = 3714683520.

The previous prime is 11145842189. The next prime is 11145842221. The reversal of 11145842208 is 80224854111.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 7717973904 + 3427868304 = 87852^2 + 58548^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=74652.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1788538 + ... + 1794758.

Almost surely, 2^11145842208 is an apocalyptic number.

11145842208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11145842208 is an abundant number, since it is smaller than the sum of its proper divisors (20555242389).

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

11145842208 is an frugal number, since it uses more digits than its factorization.

11145842208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12458 (or 6226 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The spelling of 11145842208 in words is "eleven billion, one hundred forty-five million, eight hundred forty-two thousand, two hundred eight".