669401207459 has 2 divisors, whose sum is σ = 669401207460. Its totient is φ = 669401207458.

The previous prime is 669401207417. The next prime is 669401207467. The reversal of 669401207459 is 954702104966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 669401207459 - 2³² = 665106240163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 669401207459.

It is not a weakly prime, because it can be changed into another prime (669401207159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334700603729 + 334700603730.

It is an arithmetic number, because the mean of its divisors is an integer number (334700603730).

Almost surely, 2^669401207459 is an apocalyptic number.

669401207459 is a deficient number, since it is larger than the sum of its proper divisors (1).

669401207459 is an equidigital number, since it uses as much as digits as its factorization.

669401207459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 669401207459 in words is "six hundred sixty-nine billion, four hundred one million, two hundred seven thousand, four hundred fifty-nine".