1604603044441 has 4 divisors (see below), whose sum is σ = 1604978745984. Its totient is φ = 1604227342900.

The previous prime is 1604603044433. The next prime is 1604603044519. The reversal of 1604603044441 is 1444403064061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1604603044441 - 2³ = 1604603044433 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 1604603044441.

It is not an unprimeable number, because it can be changed into a prime (1604603044741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187844365 + ... + 187852906.

It is an arithmetic number, because the mean of its divisors is an integer number (401244686496).

Almost surely, 2^{1604603044441} is an apocalyptic number.

It is an amenable number.

1604603044441 is a deficient number, since it is larger than the sum of its proper divisors (375701543).

1604603044441 is an equidigital number, since it uses as much as digits as its factorization.

1604603044441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375701542.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 1604603044441 in words is "one trillion, six hundred four billion, six hundred three million, forty-four thousand, four hundred forty-one".