665264683 has 2 divisors, whose sum is σ = 665264684. Its totient is φ = 665264682.

The previous prime is 665264617. The next prime is 665264687. The reversal of 665264683 is 386462566.

It is a happy number.

665264683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-665264683 is a prime.

It is not a weakly prime, because it can be changed into another prime (665264687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332632341 + 332632342.

It is an arithmetic number, because the mean of its divisors is an integer number (332632342).

Almost surely, 2^665264683 is an apocalyptic number.

665264683 is a deficient number, since it is larger than the sum of its proper divisors (1).

665264683 is an equidigital number, since it uses as much as digits as its factorization.

665264683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 46.

The square root of 665264683 is about 25792.7253891480. The cubic root of 665264683 is about 872.9676621942.

The spelling of 665264683 in words is "six hundred sixty-five million, two hundred sixty-four thousand, six hundred eighty-three".