1604556286944 has 384 divisors, whose sum is σ = 4882309447680. Its totient is φ = 457635225600.

The previous prime is 1604556286909. The next prime is 1604556287123. The reversal of 1604556286944 is 4496826554061.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142482274 + ... + 142493534.

It is an arithmetic number, because the mean of its divisors is an integer number (12714347520).

Almost surely, 2^{1604556286944} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1604556286944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2441154723840).

1604556286944 is an abundant number, since it is smaller than the sum of its proper divisors (3277753160736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1604556286944 is a wasteful number, since it uses less digits than its factorization.

1604556286944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474 (or 11466 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 1604556286944 in words is "one trillion, six hundred four billion, five hundred fifty-six million, two hundred eighty-six thousand, nine hundred forty-four".