22164803867849 has 2 divisors, whose sum is σ = 22164803867850. Its totient is φ = 22164803867848.

The previous prime is 22164803867813. The next prime is 22164803867851. The reversal of 22164803867849 is 94876830846122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21484291063225 + 680512804624 = 4635115^2 + 824932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22164803867849 is a prime.

Together with 22164803867851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22164803867809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11082401933924 + 11082401933925.

It is an arithmetic number, because the mean of its divisors is an integer number (11082401933925).

Almost surely, 2^{22164803867849} is an apocalyptic number.

It is an amenable number.

22164803867849 is a deficient number, since it is larger than the sum of its proper divisors (1).

22164803867849 is an equidigital number, since it uses as much as digits as its factorization.

22164803867849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222953472, while the sum is 68.

The spelling of 22164803867849 in words is "twenty-two trillion, one hundred sixty-four billion, eight hundred three million, eight hundred sixty-seven thousand, eight hundred forty-nine".