1663166359 has 2 divisors, whose sum is σ = 1663166360. Its totient is φ = 1663166358.

The previous prime is 1663166333. The next prime is 1663166371. The reversal of 1663166359 is 9536613661.

It is a strong prime.

It is an emirp because it is prime and its reverse (9536613661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1663166359 - 2⁷ = 1663166231 is a prime.

It is a super-2 number, since 2×1663166359² = 5532244675418633762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1663166759) 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, 831583179 + 831583180.

It is an arithmetic number, because the mean of its divisors is an integer number (831583180).

Almost surely, 2^1663166359 is an apocalyptic number.

1663166359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663166359 is an equidigital number, since it uses as much as digits as its factorization.

1663166359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 46.

The square root of 1663166359 is about 40781.9366754449. The cubic root of 1663166359 is about 1184.8005050295.

The spelling of 1663166359 in words is "one billion, six hundred sixty-three million, one hundred sixty-six thousand, three hundred fifty-nine".