22641332669 has 2 divisors, whose sum is σ = 22641332670. Its totient is φ = 22641332668.

The previous prime is 22641332657. The next prime is 22641332761. The reversal of 22641332669 is 96623314622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22618656025 + 22676644 = 150395^2 + 4762^2 .

It is a cyclic number.

It is not a de Polignac number, because 22641332669 - 2²⁴ = 22624555453 is a prime.

It is a super-2 number, since 2×22641332669² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22641332369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11320666334 + 11320666335.

It is an arithmetic number, because the mean of its divisors is an integer number (11320666335).

Almost surely, 2^22641332669 is an apocalyptic number.

It is an amenable number.

22641332669 is a deficient number, since it is larger than the sum of its proper divisors (1).

22641332669 is an equidigital number, since it uses as much as digits as its factorization.

22641332669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 44.

The spelling of 22641332669 in words is "twenty-two billion, six hundred forty-one million, three hundred thirty-two thousand, six hundred sixty-nine".