424661166409 has 2 divisors, whose sum is σ = 424661166410. Its totient is φ = 424661166408.

The previous prime is 424661166341. The next prime is 424661166427. The reversal of 424661166409 is 904661166424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227174250384 + 197486916025 = 476628^2 + 444395^2 .

It is a cyclic number.

It is not a de Polignac number, because 424661166409 - 2³¹ = 422513682761 is a prime.

It is not a weakly prime, because it can be changed into another prime (424661166439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212330583204 + 212330583205.

It is an arithmetic number, because the mean of its divisors is an integer number (212330583205).

Almost surely, 2^424661166409 is an apocalyptic number.

It is an amenable number.

424661166409 is a deficient number, since it is larger than the sum of its proper divisors (1).

424661166409 is an equidigital number, since it uses as much as digits as its factorization.

424661166409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 424661166409 in words is "four hundred twenty-four billion, six hundred sixty-one million, one hundred sixty-six thousand, four hundred nine".