2116465663205 has 8 divisors (see below), whose sum is σ = 2539871116800. Its totient is φ = 1693097649936.

The previous prime is 2116465663199. The next prime is 2116465663211. The reversal of 2116465663205 is 5023665646112.

It is an interprime number because it is at equal distance from previous prime (2116465663199) and next prime (2116465663211).

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 2116465663205 - 2¹² = 2116465659109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2116465663205.

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, 9235565 + ... + 9461954.

It is an arithmetic number, because the mean of its divisors is an integer number (317483889600).

Almost surely, 2^{2116465663205} is an apocalyptic number.

It is an amenable number.

2116465663205 is a deficient number, since it is larger than the sum of its proper divisors (423405453595).

2116465663205 is a wasteful number, since it uses less digits than its factorization.

2116465663205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18720163.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 2116465663205 in words is "two trillion, one hundred sixteen billion, four hundred sixty-five million, six hundred sixty-three thousand, two hundred five".