1663105224433 has 2 divisors, whose sum is σ = 1663105224434. Its totient is φ = 1663105224432.

The previous prime is 1663105224409. The next prime is 1663105224439. The reversal of 1663105224433 is 3344225013661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308671936784 + 354433287649 = 1143972^2 + 595343^2 .

It is a cyclic number.

It is not a de Polignac number, because 1663105224433 - 2⁵ = 1663105224401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1663105224439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831552612216 + 831552612217.

It is an arithmetic number, because the mean of its divisors is an integer number (831552612217).

Almost surely, 2^{1663105224433} is an apocalyptic number.

It is an amenable number.

1663105224433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663105224433 is an equidigital number, since it uses as much as digits as its factorization.

1663105224433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 1663105224433 in words is "one trillion, six hundred sixty-three billion, one hundred five million, two hundred twenty-four thousand, four hundred thirty-three".