11665216536164 has 6 divisors (see below), whose sum is σ = 20414128938294. Its totient is φ = 5832608268080.

The previous prime is 11665216536151. The next prime is 11665216536167. The reversal of 11665216536164 is 46163561256611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11360742124900 + 304474411264 = 3370570^2 + 551792^2 .

It is not an unprimeable number, because it can be changed into a prime (11665216536167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1458152067017 + ... + 1458152067024.

It is an arithmetic number, because the mean of its divisors is an integer number (3402354823049).

Almost surely, 2^{11665216536164} is an apocalyptic number.

It is an amenable number.

11665216536164 is a deficient number, since it is larger than the sum of its proper divisors (8748912402130).

11665216536164 is a wasteful number, since it uses less digits than its factorization.

11665216536164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916304134045 (or 2916304134043 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 53.

The spelling of 11665216536164 in words is "eleven trillion, six hundred sixty-five billion, two hundred sixteen million, five hundred thirty-six thousand, one hundred sixty-four".