22961456641 has 2 divisors, whose sum is σ = 22961456642. Its totient is φ = 22961456640.

The previous prime is 22961456627. The next prime is 22961456711. The reversal of 22961456641 is 14665416922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12165207616 + 10796249025 = 110296^2 + 103905^2 .

It is a cyclic number.

It is not a de Polignac number, because 22961456641 - 2⁷ = 22961456513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22961456591 and 22961456600.

It is not a weakly prime, because it can be changed into another prime (22961456621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11480728320 + 11480728321.

It is an arithmetic number, because the mean of its divisors is an integer number (11480728321).

Almost surely, 2^22961456641 is an apocalyptic number.

It is an amenable number.

22961456641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22961456641 is an equidigital number, since it uses as much as digits as its factorization.

22961456641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The spelling of 22961456641 in words is "twenty-two billion, nine hundred sixty-one million, four hundred fifty-six thousand, six hundred forty-one".