1664465711 has 2 divisors, whose sum is σ = 1664465712. Its totient is φ = 1664465710.

The previous prime is 1664465681. The next prime is 1664465713. The reversal of 1664465711 is 1175644661.

It is a strong prime.

It is an emirp because it is prime and its reverse (1175644661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1664465711 - 2¹⁰ = 1664464687 is a prime.

It is a super-2 number, since 2×1664465711² = 5540892206189471042, which contains 22 as substring.

Together with 1664465713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1664465713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832232855 + 832232856.

It is an arithmetic number, because the mean of its divisors is an integer number (832232856).

Almost surely, 2^1664465711 is an apocalyptic number.

1664465711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1664465711 is an equidigital number, since it uses as much as digits as its factorization.

1664465711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 1664465711 is about 40797.8640494818. The cubic root of 1664465711 is about 1185.1089672921.

The spelling of 1664465711 in words is "one billion, six hundred sixty-four million, four hundred sixty-five thousand, seven hundred eleven".