11665016611568 has 20 divisors (see below), whose sum is σ = 22605755130888. Its totient is φ = 5831273352000.

The previous prime is 11665016611513. The next prime is 11665016611571. The reversal of 11665016611568 is 86511661056611.

It is a super-2 number, since 2×11665016611568² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77106683 + ... + 77257818.

Almost surely, 2^{11665016611568} is an apocalyptic number.

It is an amenable number.

11665016611568 is a deficient number, since it is larger than the sum of its proper divisors (10940738519320).

11665016611568 is a wasteful number, since it uses less digits than its factorization.

11665016611568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154369232 (or 154369226 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 53.

The spelling of 11665016611568 in words is "eleven trillion, six hundred sixty-five billion, sixteen million, six hundred eleven thousand, five hundred sixty-eight".