2065657753 has 6 divisors (see below), whose sum is σ = 2068931774. Its totient is φ = 2062388736.

The previous prime is 2065657747. The next prime is 2065657799. The reversal of 2065657753 is 3577565602.

It can be written as a sum of positive squares in 3 ways, for example, as 424030464 + 1641627289 = 20592^2 + 40517^2 .

It is not a de Polignac number, because 2065657753 - 2⁵ = 2065657721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065657703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595801 + ... + 599257.

Almost surely, 2^2065657753 is an apocalyptic number.

It is an amenable number.

2065657753 is a deficient number, since it is larger than the sum of its proper divisors (3274021).

2065657753 is an frugal number, since it uses more digits than its factorization.

2065657753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003 (or 4230 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 46.

The square root of 2065657753 is about 45449.5077311075. The cubic root of 2065657753 is about 1273.5601334739.

The spelling of 2065657753 in words is "two billion, sixty-five million, six hundred fifty-seven thousand, seven hundred fifty-three".