605000155505 has 8 divisors (see below), whose sum is σ = 726155575272. Its totient is φ = 483896531968.

The previous prime is 605000155481. The next prime is 605000155579. The reversal of 605000155505 is 505551000506.

It can be written as a sum of positive squares in 4 ways, for example, as 86947137424 + 518053018081 = 294868^2 + 719759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605000155505 is a prime.

It is a super-2 number, since 2×605000155505² (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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12923354 + ... + 12970083.

It is an arithmetic number, because the mean of its divisors is an integer number (90769446909).

Almost surely, 2^605000155505 is an apocalyptic number.

It is an amenable number.

605000155505 is a deficient number, since it is larger than the sum of its proper divisors (121155419767).

605000155505 is a wasteful number, since it uses less digits than its factorization.

605000155505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25898115.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 605000155505 in words is "six hundred five billion, one hundred fifty-five thousand, five hundred five".