11645009645018 has 8 divisors (see below), whose sum is σ = 18495015318612. Its totient is φ = 5480004538816.

The previous prime is 11645009644991. The next prime is 11645009645023. The reversal of 11645009645018 is 81054690054611.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11643770816209 + 1238828809 = 3412297^2 + 35197^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171250141805 + ... + 171250141872.

Almost surely, 2^{11645009645018} is an apocalyptic number.

11645009645018 is a deficient number, since it is larger than the sum of its proper divisors (6850005673594).

11645009645018 is a wasteful number, since it uses less digits than its factorization.

11645009645018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342500283696.

The product of its (nonzero) digits is 1036800, while the sum is 50.

Adding to 11645009645018 its reverse (81054690054611), we get a palindrome (92699699699629).

The spelling of 11645009645018 in words is "eleven trillion, six hundred forty-five billion, nine million, six hundred forty-five thousand, eighteen".