1663532340229 has 2 divisors, whose sum is σ = 1663532340230. Its totient is φ = 1663532340228.

The previous prime is 1663532340221. The next prime is 1663532340241. The reversal of 1663532340229 is 9220432353661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1531163709604 + 132368630625 = 1237402^2 + 363825^2 .

It is a cyclic number.

It is not a de Polignac number, because 1663532340229 - 2³ = 1663532340221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1663532340221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831766170114 + 831766170115.

It is an arithmetic number, because the mean of its divisors is an integer number (831766170115).

Almost surely, 2^{1663532340229} is an apocalyptic number.

It is an amenable number.

1663532340229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663532340229 is an equidigital number, since it uses as much as digits as its factorization.

1663532340229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 1663532340229 in words is "one trillion, six hundred sixty-three billion, five hundred thirty-two million, three hundred forty thousand, two hundred twenty-nine".