5105656560065 has 4 divisors (see below), whose sum is σ = 6126787872084. Its totient is φ = 4084525248048.

The previous prime is 5105656560001. The next prime is 5105656560071. The reversal of 5105656560065 is 5600656565015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2657783533441 + 2447873026624 = 1630271^2 + 1564568^2 .

It is a cyclic number.

It is not a de Polignac number, because 5105656560065 - 2⁶ = 5105656560001 is a prime.

It is a super-3 number, since 3×5105656560065³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5105656559995 and 5105656560022.

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, 510565656002 + ... + 510565656011.

It is an arithmetic number, because the mean of its divisors is an integer number (1531696968021).

Almost surely, 2^{5105656560065} is an apocalyptic number.

It is an amenable number.

5105656560065 is a deficient number, since it is larger than the sum of its proper divisors (1021131312019).

5105656560065 is a wasteful number, since it uses less digits than its factorization.

5105656560065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021131312018.

The product of its (nonzero) digits is 4050000, while the sum is 50.

The spelling of 5105656560065 in words is "five trillion, one hundred five billion, six hundred fifty-six million, five hundred sixty thousand, sixty-five".