1604129420959 has 32 divisors (see below), whose sum is σ = 1897739020800. Its totient is φ = 1341647556480.

The previous prime is 1604129420939. The next prime is 1604129420977. The reversal of 1604129420959 is 9590249214061.

It is a cyclic number.

It is not a de Polignac number, because 1604129420959 - 2²³ = 1604121032351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604129420939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79131877 + ... + 79152145.

It is an arithmetic number, because the mean of its divisors is an integer number (59304344400).

Almost surely, 2^{1604129420959} is an apocalyptic number.

1604129420959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1604129420959 is a deficient number, since it is larger than the sum of its proper divisors (293609599841).

1604129420959 is a wasteful number, since it uses less digits than its factorization.

1604129420959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34255.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 1604129420959 in words is "one trillion, six hundred four billion, one hundred twenty-nine million, four hundred twenty thousand, nine hundred fifty-nine".