11664661550136 has 128 divisors (see below), whose sum is σ = 34970915635200. Its totient is φ = 3170048365440.

The previous prime is 11664661550123. The next prime is 11664661550153. The reversal of 11664661550136 is 63105516646611.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 7740760 + ... + 9124071.

It is an arithmetic number, because the mean of its divisors is an integer number (273210278400).

Almost surely, 2^{11664661550136} is an apocalyptic number.

It is an amenable number.

11664661550136 is an abundant number, since it is smaller than the sum of its proper divisors (23306254085064).

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

11664661550136 is a wasteful number, since it uses less digits than its factorization.

11664661550136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16865049 (or 16865045 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 11664661550136 in words is "eleven trillion, six hundred sixty-four billion, six hundred sixty-one million, five hundred fifty thousand, one hundred thirty-six".