6606235261 has 4 divisors (see below), whose sum is σ = 6606401152. Its totient is φ = 6606069372.

The previous prime is 6606235219. The next prime is 6606235271. The reversal of 6606235261 is 1625326066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6606235261 - 2¹⁷ = 6606104189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6606235261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6606235271) 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 in 3 ways as a sum of consecutive naturals, for example, 16660 + ... + 116146.

It is an arithmetic number, because the mean of its divisors is an integer number (1651600288).

Almost surely, 2^6606235261 is an apocalyptic number.

It is an amenable number.

6606235261 is a deficient number, since it is larger than the sum of its proper divisors (165891).

6606235261 is an equidigital number, since it uses as much as digits as its factorization.

6606235261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165890.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 6606235261 is about 81278.7503656398. The cubic root of 6606235261 is about 1876.3679745964.

The spelling of 6606235261 in words is "six billion, six hundred six million, two hundred thirty-five thousand, two hundred sixty-one".