146663354770649 has 2 divisors, whose sum is σ = 146663354770650. Its totient is φ = 146663354770648.

The previous prime is 146663354770601. The next prime is 146663354770651. The reversal of 146663354770649 is 946077453366641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141085458643600 + 5577896127049 = 11877940^2 + 2361757^2 .

It is an emirp because it is prime and its reverse (946077453366641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146663354770649 - 2⁸ = 146663354770393 is a prime.

Together with 146663354770651, 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 (146663354170649) 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, 73331677385324 + 73331677385325.

It is an arithmetic number, because the mean of its divisors is an integer number (73331677385325).

Almost surely, 2^{146663354770649} is an apocalyptic number.

It is an amenable number.

146663354770649 is a deficient number, since it is larger than the sum of its proper divisors (1).

146663354770649 is an equidigital number, since it uses as much as digits as its factorization.

146663354770649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1646023680, while the sum is 71.

The spelling of 146663354770649 in words is "one hundred forty-six trillion, six hundred sixty-three billion, three hundred fifty-four million, seven hundred seventy thousand, six hundred forty-nine".