22664665938149 has 2 divisors, whose sum is σ = 22664665938150. Its totient is φ = 22664665938148.

The previous prime is 22664665938121. The next prime is 22664665938203. The reversal of 22664665938149 is 94183956646622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11635671432100 + 11028994506049 = 3411110^2 + 3320993^2 .

It is a cyclic number.

It is not a de Polignac number, because 22664665938149 - 2⁴⁰ = 21565154310373 is a prime.

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 (22664665908149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11332332969074 + 11332332969075.

It is an arithmetic number, because the mean of its divisors is an integer number (11332332969075).

Almost surely, 2^{22664665938149} is an apocalyptic number.

It is an amenable number.

22664665938149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22664665938149 is an equidigital number, since it uses as much as digits as its factorization.

22664665938149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806215680, while the sum is 71.

The spelling of 22664665938149 in words is "twenty-two trillion, six hundred sixty-four billion, six hundred sixty-five million, nine hundred thirty-eight thousand, one hundred forty-nine".