65500663 has 2 divisors, whose sum is σ = 65500664. Its totient is φ = 65500662.

The previous prime is 65500661. The next prime is 65500691. The reversal of 65500663 is 36600556.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65500663 - 2¹ = 65500661 is a prime.

Together with 65500661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65500661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750331 + 32750332.

It is an arithmetic number, because the mean of its divisors is an integer number (32750332).

Almost surely, 2^65500663 is an apocalyptic number.

65500663 is a deficient number, since it is larger than the sum of its proper divisors (1).

65500663 is an equidigital number, since it uses as much as digits as its factorization.

65500663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 65500663 is about 8093.2479882925. The cubic root of 65500663 is about 403.1022590220.

The spelling of 65500663 in words is "sixty-five million, five hundred thousand, six hundred sixty-three".