1604335404161 has 8 divisors (see below), whose sum is σ = 1941380657280. Its totient is φ = 1294253771328.

The previous prime is 1604335404157. The next prime is 1604335404209. The reversal of 1604335404161 is 1614045334061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1604335404161 - 2² = 1604335404157 is a prime.

It is a super-2 number, since 2×1604335404161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1604335404131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6740904941 + ... + 6740905178.

It is an arithmetic number, because the mean of its divisors is an integer number (242672582160).

Almost surely, 2^{1604335404161} is an apocalyptic number.

It is an amenable number.

1604335404161 is a deficient number, since it is larger than the sum of its proper divisors (337045253119).

1604335404161 is a wasteful number, since it uses less digits than its factorization.

1604335404161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13481810143.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 1604335404161 in words is "one trillion, six hundred four billion, three hundred thirty-five million, four hundred four thousand, one hundred sixty-one".