5105312116605 has 12 divisors (see below), whose sum is σ = 8849207668860. Its totient is φ = 2722833128832.

The previous prime is 5105312116559. The next prime is 5105312116607. The reversal of 5105312116605 is 5066112135015.

5105312116605 is a `hidden beast` number, since 5 + 1 + 0 + 5 + 31 + 2 + 1 + 16 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3068064024921 + 2037248091684 = 1751589^2 + 1427322^2 .

It is not a de Polignac number, because 5105312116605 - 2⁷ = 5105312116477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5105312116605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105312116607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56725690140 + ... + 56725690229.

It is an arithmetic number, because the mean of its divisors is an integer number (737433972405).

Almost surely, 2^{5105312116605} is an apocalyptic number.

It is an amenable number.

5105312116605 is a deficient number, since it is larger than the sum of its proper divisors (3743895552255).

5105312116605 is a wasteful number, since it uses less digits than its factorization.

5105312116605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113451380380 (or 113451380377 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 5105312116605 in words is "five trillion, one hundred five billion, three hundred twelve million, one hundred sixteen thousand, six hundred five".