142466243361649 has 2 divisors, whose sum is σ = 142466243361650. Its totient is φ = 142466243361648.

The previous prime is 142466243361623. The next prime is 142466243361679. The reversal of 142466243361649 is 946163342664241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123187645614049 + 19278597747600 = 11098993^2 + 4390740^2 .

It is a cyclic number.

It is not a de Polignac number, because 142466243361649 - 2⁷ = 142466243361521 is a prime.

It is not a weakly prime, because it can be changed into another prime (142466243361679) 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, 71233121680824 + 71233121680825.

It is an arithmetic number, because the mean of its divisors is an integer number (71233121680825).

Almost surely, 2^{142466243361649} is an apocalyptic number.

It is an amenable number.

142466243361649 is a deficient number, since it is larger than the sum of its proper divisors (1).

142466243361649 is an equidigital number, since it uses as much as digits as its factorization.

142466243361649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107495424, while the sum is 61.

The spelling of 142466243361649 in words is "one hundred forty-two trillion, four hundred sixty-six billion, two hundred forty-three million, three hundred sixty-one thousand, six hundred forty-nine".