22664665908149 has 2 divisors, whose sum is σ = 22664665908150. Its totient is φ = 22664665908148.

The previous prime is 22664665908097. The next prime is 22664665908167. The reversal of 22664665908149 is 94180956646622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22344245380900 + 320420527249 = 4726970^2 + 566057^2 .

It is a cyclic number.

It is not a de Polignac number, because 22664665908149 - 2¹² = 22664665904053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22664665904149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11332332954074 + 11332332954075.

It is an arithmetic number, because the mean of its divisors is an integer number (11332332954075).

Almost surely, 2^{22664665908149} is an apocalyptic number.

It is an amenable number.

22664665908149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22664665908149 is an equidigital number, since it uses as much as digits as its factorization.

22664665908149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268738560, while the sum is 68.

The spelling of 22664665908149 in words is "twenty-two trillion, six hundred sixty-four billion, six hundred sixty-five million, nine hundred eight thousand, one hundred forty-nine".