3265645657 has 2 divisors, whose sum is σ = 3265645658. Its totient is φ = 3265645656.

The previous prime is 3265645631. The next prime is 3265645661. The reversal of 3265645657 is 7565465623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2162343001 + 1103302656 = 46501^2 + 33216^2 .

It is a cyclic number.

It is not a de Polignac number, because 3265645657 - 2²³ = 3257257049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3265645657.

It is not a weakly prime, because it can be changed into another prime (3265645667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1632822828 + 1632822829.

It is an arithmetic number, because the mean of its divisors is an integer number (1632822829).

Almost surely, 2^3265645657 is an apocalyptic number.

It is an amenable number.

3265645657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3265645657 is an equidigital number, since it uses as much as digits as its factorization.

3265645657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 49.

The square root of 3265645657 is about 57145.8279929515. The cubic root of 3265645657 is about 1483.6211633458.

The spelling of 3265645657 in words is "three billion, two hundred sixty-five million, six hundred forty-five thousand, six hundred fifty-seven".