666196070459 has 2 divisors, whose sum is σ = 666196070460. Its totient is φ = 666196070458.

The previous prime is 666196070383. The next prime is 666196070473. The reversal of 666196070459 is 954070691666.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666196070459 - 2³⁶ = 597476593723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 666196070398 and 666196070407.

It is not a weakly prime, because it can be changed into another prime (666196070359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333098035229 + 333098035230.

It is an arithmetic number, because the mean of its divisors is an integer number (333098035230).

Almost surely, 2^666196070459 is an apocalyptic number.

666196070459 is a deficient number, since it is larger than the sum of its proper divisors (1).

666196070459 is an equidigital number, since it uses as much as digits as its factorization.

666196070459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 666196070459 in words is "six hundred sixty-six billion, one hundred ninety-six million, seventy thousand, four hundred fifty-nine".