606605236561 has 8 divisors (see below), whose sum is σ = 607487535720. Its totient is φ = 605723432448.

The previous prime is 606605236529. The next prime is 606605236571. The reversal of 606605236561 is 165632506606.

It can be written as a sum of positive squares in 4 ways, for example, as 183787977025 + 422817259536 = 428705^2 + 650244^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 606605236561 - 2⁵ = 606605236529 is a prime.

It is a super-2 number, since 2×606605236561² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606605236571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2364975 + ... + 2608891.

It is an arithmetic number, because the mean of its divisors is an integer number (75935941965).

Almost surely, 2^606605236561 is an apocalyptic number.

It is an amenable number.

606605236561 is a deficient number, since it is larger than the sum of its proper divisors (882299159).

606605236561 is a wasteful number, since it uses less digits than its factorization.

606605236561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247523.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 606605236561 in words is "six hundred six billion, six hundred five million, two hundred thirty-six thousand, five hundred sixty-one".