22518030641 has 2 divisors, whose sum is σ = 22518030642. Its totient is φ = 22518030640.

The previous prime is 22518030611. The next prime is 22518030707. The reversal of 22518030641 is 14603081522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21020650225 + 1497380416 = 144985^2 + 38696^2 .

It is a cyclic number.

It is not a de Polignac number, because 22518030641 - 2¹⁰ = 22518029617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22518030598 and 22518030607.

It is not a weakly prime, because it can be changed into another prime (22518030611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11259015320 + 11259015321.

It is an arithmetic number, because the mean of its divisors is an integer number (11259015321).

Almost surely, 2^22518030641 is an apocalyptic number.

It is an amenable number.

22518030641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22518030641 is an equidigital number, since it uses as much as digits as its factorization.

22518030641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 22518030641 in words is "twenty-two billion, five hundred eighteen million, thirty thousand, six hundred forty-one".