606664153261 has 6 divisors (see below), whose sum is σ = 607097009162. Its totient is φ = 606231605760.

The previous prime is 606664153253. The next prime is 606664153267. The reversal of 606664153261 is 162351466606.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 110669328900 + 495994824361 = 332670^2 + 704269^2 .

It is not a de Polignac number, because 606664153261 - 2³ = 606664153253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606664153267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1832491 + ... + 2138071.

Almost surely, 2^606664153261 is an apocalyptic number.

It is an amenable number.

606664153261 is a deficient number, since it is larger than the sum of its proper divisors (432855901).

606664153261 is an frugal number, since it uses more digits than its factorization.

606664153261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308399 (or 306990 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 606664153261 in words is "six hundred six billion, six hundred sixty-four million, one hundred fifty-three thousand, two hundred sixty-one".