667648584259 has 2 divisors, whose sum is σ = 667648584260. Its totient is φ = 667648584258.

The previous prime is 667648584233. The next prime is 667648584293. The reversal of 667648584259 is 952485846766.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667648584259 is a prime.

It is not a weakly prime, because it can be changed into another prime (667648554259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333824292129 + 333824292130.

It is an arithmetic number, because the mean of its divisors is an integer number (333824292130).

Almost surely, 2^667648584259 is an apocalyptic number.

667648584259 is a deficient number, since it is larger than the sum of its proper divisors (1).

667648584259 is an equidigital number, since it uses as much as digits as its factorization.

667648584259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 696729600, while the sum is 70.

The spelling of 667648584259 in words is "six hundred sixty-seven billion, six hundred forty-eight million, five hundred eighty-four thousand, two hundred fifty-nine".