5105605105064 has 8 divisors (see below), whose sum is σ = 9573009572010. Its totient is φ = 2552802552528.

The previous prime is 5105605105061. The next prime is 5105605105093. The reversal of 5105605105064 is 4605015065015.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3309088428100 + 1796516676964 = 1819090^2 + 1340342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (5105605105061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319100319059 + ... + 319100319074.

Almost surely, 2^{5105605105064} is an apocalyptic number.

It is an amenable number.

5105605105064 is a deficient number, since it is larger than the sum of its proper divisors (4467404466946).

5105605105064 is a wasteful number, since it uses less digits than its factorization.

5105605105064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638200638139 (or 638200638135 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 5105605105064 in words is "five trillion, one hundred five billion, six hundred five million, one hundred five thousand, sixty-four".