11645338218 has 8 divisors (see below), whose sum is σ = 23290676448. Its totient is φ = 3881779404.

The previous prime is 11645338207. The next prime is 11645338231. The reversal of 11645338218 is 81283354611.

It is a happy number.

11645338218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

11645338218 is an admirable number.

It is a super-2 number, since 2×11645338218² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11645338218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970444846 + ... + 970444857.

It is an arithmetic number, because the mean of its divisors is an integer number (2911334556).

Almost surely, 2^11645338218 is an apocalyptic number.

11645338218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11645338218 is a wasteful number, since it uses less digits than its factorization.

11645338218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940889708.

The product of its digits is 138240, while the sum is 42.

The spelling of 11645338218 in words is "eleven billion, six hundred forty-five million, three hundred thirty-eight thousand, two hundred eighteen".