20240661375089 has 2 divisors, whose sum is σ = 20240661375090. Its totient is φ = 20240661375088.

The previous prime is 20240661375061. The next prime is 20240661375139. The reversal of 20240661375089 is 98057316604202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10913165106064 + 9327496269025 = 3303508^2 + 3054095^2 .

It is a cyclic number.

It is not a de Polignac number, because 20240661375089 - 2⁸ = 20240661374833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20240661375089.

It is not a weakly prime, because it can be changed into another prime (20240661375029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10120330687544 + 10120330687545.

It is an arithmetic number, because the mean of its divisors is an integer number (10120330687545).

It is a 1-persistent number, because it is pandigital, but 2⋅20240661375089 = 40481322750178 is not.

Almost surely, 2^{20240661375089} is an apocalyptic number.

It is an amenable number.

20240661375089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20240661375089 is an equidigital number, since it uses as much as digits as its factorization.

20240661375089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 20240661375089 in words is "twenty trillion, two hundred forty billion, six hundred sixty-one million, three hundred seventy-five thousand, eighty-nine".