12116565867605 has 8 divisors (see below), whose sum is σ = 15172047695232. Its totient is φ = 9271806924688.

The previous prime is 12116565867583. The next prime is 12116565867619. The reversal of 12116565867605 is 50676856561121.

12116565867605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12116565867605 - 2⁶ = 12116565867541 is a prime.

It is a super-2 number, since 2×12116565867605² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

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, 52680721049 + ... + 52680721278.

It is an arithmetic number, because the mean of its divisors is an integer number (1896505961904).

Almost surely, 2^{12116565867605} is an apocalyptic number.

It is an amenable number.

12116565867605 is a deficient number, since it is larger than the sum of its proper divisors (3055481827627).

12116565867605 is a wasteful number, since it uses less digits than its factorization.

12116565867605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105361442355.

The product of its (nonzero) digits is 18144000, while the sum is 59.

The spelling of 12116565867605 in words is "twelve trillion, one hundred sixteen billion, five hundred sixty-five million, eight hundred sixty-seven thousand, six hundred five".