6065515661 has 2 divisors, whose sum is σ = 6065515662. Its totient is φ = 6065515660.

The previous prime is 6065515639. The next prime is 6065515667. The reversal of 6065515661 is 1665155606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5918378761 + 147136900 = 76931^2 + 12130^2 .

It is a cyclic number.

It is not a de Polignac number, because 6065515661 - 2²⁶ = 5998406797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6065515667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3032757830 + 3032757831.

It is an arithmetic number, because the mean of its divisors is an integer number (3032757831).

Almost surely, 2^6065515661 is an apocalyptic number.

It is an amenable number.

6065515661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6065515661 is an equidigital number, since it uses as much as digits as its factorization.

6065515661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 6065515661 is about 77881.4205122120. The cubic root of 6065515661 is about 1823.7105458089.

The spelling of 6065515661 in words is "six billion, sixty-five million, five hundred fifteen thousand, six hundred sixty-one".