22030665641 has 4 divisors (see below), whose sum is σ = 22278201300. Its totient is φ = 21783129984.

The previous prime is 22030665593. The next prime is 22030665647. The reversal of 22030665641 is 14656603022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1283144041 + 20747521600 = 35821^2 + 144040^2 .

It is a cyclic number.

It is not a de Polignac number, because 22030665641 - 2⁶ = 22030665577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22030665647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123767696 + ... + 123767873.

It is an arithmetic number, because the mean of its divisors is an integer number (5569550325).

Almost surely, 2^22030665641 is an apocalyptic number.

It is an amenable number.

22030665641 is a deficient number, since it is larger than the sum of its proper divisors (247535659).

22030665641 is an equidigital number, since it uses as much as digits as its factorization.

22030665641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247535658.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 22030665641 in words is "twenty-two billion, thirty million, six hundred sixty-five thousand, six hundred forty-one".