6663500471 has 2 divisors, whose sum is σ = 6663500472. Its totient is φ = 6663500470.

The previous prime is 6663500443. The next prime is 6663500483. The reversal of 6663500471 is 1740053666.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6663500471 - 2¹⁸ = 6663238327 is a prime.

It is a super-3 number, since 3×6663500471³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6663500401) 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, 3331750235 + 3331750236.

It is an arithmetic number, because the mean of its divisors is an integer number (3331750236).

Almost surely, 2^6663500471 is an apocalyptic number.

6663500471 is a deficient number, since it is larger than the sum of its proper divisors (1).

6663500471 is an equidigital number, since it uses as much as digits as its factorization.

6663500471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 6663500471 is about 81630.2668806124. The cubic root of 6663500471 is about 1881.7740601615.

The spelling of 6663500471 in words is "six billion, six hundred sixty-three million, five hundred thousand, four hundred seventy-one".