1664350063 has 2 divisors, whose sum is σ = 1664350064. Its totient is φ = 1664350062.

The previous prime is 1664350027. The next prime is 1664350067. The reversal of 1664350063 is 3600534661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1664350063 - 2¹⁷ = 1664218991 is a prime.

It is a super-2 number, since 2×1664350063² = 5540122264416207938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1664350067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832175031 + 832175032.

It is an arithmetic number, because the mean of its divisors is an integer number (832175032).

Almost surely, 2^1664350063 is an apocalyptic number.

1664350063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1664350063 is an equidigital number, since it uses as much as digits as its factorization.

1664350063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 1664350063 is about 40796.4466957602. The cubic root of 1664350063 is about 1185.0815193138.

The spelling of 1664350063 in words is "one billion, six hundred sixty-four million, three hundred fifty thousand, sixty-three".