6500606261 has 2 divisors, whose sum is σ = 6500606262. Its totient is φ = 6500606260.

The previous prime is 6500606243. The next prime is 6500606291. The reversal of 6500606261 is 1626060056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5176083025 + 1324523236 = 71945^2 + 36394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6500606261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6500606221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3250303130 + 3250303131.

It is an arithmetic number, because the mean of its divisors is an integer number (3250303131).

Almost surely, 2^6500606261 is an apocalyptic number.

It is an amenable number.

6500606261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6500606261 is an equidigital number, since it uses as much as digits as its factorization.

6500606261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 6500606261 is about 80626.3372664293. The cubic root of 6500606261 is about 1866.3135990649.

The spelling of 6500606261 in words is "six billion, five hundred million, six hundred six thousand, two hundred sixty-one".