605500110505 has 4 divisors (see below), whose sum is σ = 726600132612. Its totient is φ = 484400088400.

The previous prime is 605500110493. The next prime is 605500110643. The reversal of 605500110505 is 505011005506.

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 244481791401 + 361018319104 = 494451^2 + 600848^2 .

It is not a de Polignac number, because 605500110505 - 2⁷ = 605500110377 is a prime.

It is a super-2 number, since 2×605500110505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60550011046 + ... + 60550011055.

It is an arithmetic number, because the mean of its divisors is an integer number (181650033153).

Almost surely, 2^605500110505 is an apocalyptic number.

It is an amenable number.

605500110505 is a deficient number, since it is larger than the sum of its proper divisors (121100022107).

605500110505 is a wasteful number, since it uses less digits than its factorization.

605500110505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121100022106.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 605500110505 in words is "six hundred five billion, five hundred million, one hundred ten thousand, five hundred five".