11665327225808 has 40 divisors (see below), whose sum is σ = 23843187539520. Its totient is φ = 5513590045440.

The previous prime is 11665327225777. The next prime is 11665327225817. The reversal of 11665327225808 is 80852272356611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41844428 + ... + 42122283.

It is an arithmetic number, because the mean of its divisors is an integer number (596079688488).

Almost surely, 2^{11665327225808} is an apocalyptic number.

It is an amenable number.

11665327225808 is an abundant number, since it is smaller than the sum of its proper divisors (12177860313712).

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

11665327225808 is a wasteful number, since it uses less digits than its factorization.

11665327225808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83967195 (or 83967189 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 11665327225808 in words is "eleven trillion, six hundred sixty-five billion, three hundred twenty-seven million, two hundred twenty-five thousand, eight hundred eight".