2065761563 has 2 divisors, whose sum is σ = 2065761564. Its totient is φ = 2065761562.

The previous prime is 2065761547. The next prime is 2065761617. The reversal of 2065761563 is 3651675602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2065761563 - 2⁴ = 2065761547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2065761563.

It is not a weakly prime, because it can be changed into another prime (2062761563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032880781 + 1032880782.

It is an arithmetic number, because the mean of its divisors is an integer number (1032880782).

Almost surely, 2^2065761563 is an apocalyptic number.

2065761563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065761563 is an equidigital number, since it uses as much as digits as its factorization.

2065761563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 2065761563 is about 45450.6497533314. The cubic root of 2065761563 is about 1273.5814674473.

The spelling of 2065761563 in words is "two billion, sixty-five million, seven hundred sixty-one thousand, five hundred sixty-three".