22506065563 has 2 divisors, whose sum is σ = 22506065564. Its totient is φ = 22506065562.

The previous prime is 22506065551. The next prime is 22506065567. The reversal of 22506065563 is 36556060522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22506065563 - 2²¹ = 22503968411 is a prime.

It is not a weakly prime, because it can be changed into another prime (22506065567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11253032781 + 11253032782.

It is an arithmetic number, because the mean of its divisors is an integer number (11253032782).

Almost surely, 2^22506065563 is an apocalyptic number.

22506065563 is a deficient number, since it is larger than the sum of its proper divisors (1).

22506065563 is an equidigital number, since it uses as much as digits as its factorization.

22506065563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 22506065563 in words is "twenty-two billion, five hundred six million, sixty-five thousand, five hundred sixty-three".