20065648033 has 2 divisors, whose sum is σ = 20065648034. Its totient is φ = 20065648032.

The previous prime is 20065648021. The next prime is 20065648067. The reversal of 20065648033 is 33084656002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12028166929 + 8037481104 = 109673^2 + 89652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20065648033 is a prime.

It is a super-4 number, since 4×20065648033⁴ (a number of 42 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20065647983 and 20065648001.

It is not a weakly prime, because it can be changed into another prime (20065648093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10032824016 + 10032824017.

It is an arithmetic number, because the mean of its divisors is an integer number (10032824017).

Almost surely, 2^20065648033 is an apocalyptic number.

It is an amenable number.

20065648033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20065648033 is an equidigital number, since it uses as much as digits as its factorization.

20065648033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 20065648033 in words is "twenty billion, sixty-five million, six hundred forty-eight thousand, thirty-three".