1604645455079 has 2 divisors, whose sum is σ = 1604645455080. Its totient is φ = 1604645455078.

The previous prime is 1604645455033. The next prime is 1604645455081. The reversal of 1604645455079 is 9705545464061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1604645455079 - 2²⁴ = 1604628677863 is a prime.

Together with 1604645455081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604645455879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802322727539 + 802322727540.

It is an arithmetic number, because the mean of its divisors is an integer number (802322727540).

Almost surely, 2^{1604645455079} is an apocalyptic number.

1604645455079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604645455079 is an equidigital number, since it uses as much as digits as its factorization.

1604645455079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144000, while the sum is 56.

The spelling of 1604645455079 in words is "one trillion, six hundred four billion, six hundred forty-five million, four hundred fifty-five thousand, seventy-nine".