1814660663 has 2 divisors, whose sum is σ = 1814660664. Its totient is φ = 1814660662.

The previous prime is 1814660621. The next prime is 1814660669. The reversal of 1814660663 is 3660664181.

It is a strong prime.

It is an emirp because it is prime and its reverse (3660664181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1814660663 - 2⁶ = 1814660599 is a prime.

It is a super-3 number, since 3×1814660663³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1814660663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1814660669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907330331 + 907330332.

It is an arithmetic number, because the mean of its divisors is an integer number (907330332).

Almost surely, 2^1814660663 is an apocalyptic number.

1814660663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814660663 is an equidigital number, since it uses as much as digits as its factorization.

1814660663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 1814660663 is about 42598.8340568143. The cubic root of 1814660663 is about 1219.7340329920.

The spelling of 1814660663 in words is "one billion, eight hundred fourteen million, six hundred sixty thousand, six hundred sixty-three".