11640041226 has 64 divisors (see below), whose sum is σ = 28575590400. Its totient is φ = 3482622000.

The previous prime is 11640041183. The next prime is 11640041243. The reversal of 11640041226 is 62214004611.

11640041226 is a `hidden beast` number, since 1 + 1 + 640 + 0 + 4 + 12 + 2 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11640041226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77100 + ... + 170951.

It is an arithmetic number, because the mean of its divisors is an integer number (446493600).

Almost surely, 2^11640041226 is an apocalyptic number.

11640041226 is an abundant number, since it is smaller than the sum of its proper divisors (16935549174).

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

11640041226 is a wasteful number, since it uses less digits than its factorization.

11640041226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248152 (or 248146 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 11640041226 its reverse (62214004611), we get a palindrome (73854045837).

The spelling of 11640041226 in words is "eleven billion, six hundred forty million, forty-one thousand, two hundred twenty-six".