1604425644403 has 8 divisors (see below), whose sum is σ = 1628727296000. Its totient is φ = 1580134434120.

The previous prime is 1604425644401. The next prime is 1604425644407. The reversal of 1604425644403 is 3044465244061.

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

It is a cyclic number.

It is not a de Polignac number, because 1604425644403 - 2¹ = 1604425644401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1604425644403.

It is not an unprimeable number, because it can be changed into a prime (1604425644401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2300403 + ... + 2915596.

It is an arithmetic number, because the mean of its divisors is an integer number (203590912000).

Almost surely, 2^{1604425644403} is an apocalyptic number.

1604425644403 is a deficient number, since it is larger than the sum of its proper divisors (24301651597).

1604425644403 is an equidigital number, since it uses as much as digits as its factorization.

1604425644403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220657.

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 1604425644403 in words is "one trillion, six hundred four billion, four hundred twenty-five million, six hundred forty-four thousand, four hundred three".