11665500164 has 24 divisors (see below), whose sum is σ = 21785702400. Its totient is φ = 5446417536.

The previous prime is 11665500139. The next prime is 11665500211. The reversal of 11665500164 is 46100556611.

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, 666764 + ... + 684035.

It is an arithmetic number, because the mean of its divisors is an integer number (907737600).

Almost surely, 2^11665500164 is an apocalyptic number.

It is an amenable number.

11665500164 is a deficient number, since it is larger than the sum of its proper divisors (10120202236).

11665500164 is a wasteful number, since it uses less digits than its factorization.

11665500164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350947 (or 1350945 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 11665500164 in words is "eleven billion, six hundred sixty-five million, five hundred thousand, one hundred sixty-four".