1662226043 has 2 divisors, whose sum is σ = 1662226044. Its totient is φ = 1662226042.

The previous prime is 1662226021. The next prime is 1662226117. The reversal of 1662226043 is 3406222661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1662226043 - 2¹⁸ = 1661963899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1662226003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831113021 + 831113022.

It is an arithmetic number, because the mean of its divisors is an integer number (831113022).

Almost surely, 2^1662226043 is an apocalyptic number.

1662226043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662226043 is an equidigital number, since it uses as much as digits as its factorization.

1662226043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1662226043 is about 40770.4064610595. The cubic root of 1662226043 is about 1184.5771766191.

The spelling of 1662226043 in words is "one billion, six hundred sixty-two million, two hundred twenty-six thousand, forty-three".