1662065227 has 2 divisors, whose sum is σ = 1662065228. Its totient is φ = 1662065226.

The previous prime is 1662065203. The next prime is 1662065239. The reversal of 1662065227 is 7225602661.

It is a strong prime.

It is an emirp because it is prime and its reverse (7225602661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1662065227 - 2⁷ = 1662065099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1662065267) 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, 831032613 + 831032614.

It is an arithmetic number, because the mean of its divisors is an integer number (831032614).

Almost surely, 2^1662065227 is an apocalyptic number.

1662065227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662065227 is an equidigital number, since it uses as much as digits as its factorization.

1662065227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1662065227 is about 40768.4341985316. The cubic root of 1662065227 is about 1184.5389738112.

Adding to 1662065227 its reverse (7225602661), we get a palindrome (8887667888).

The spelling of 1662065227 in words is "one billion, six hundred sixty-two million, sixty-five thousand, two hundred twenty-seven".