1603941856560 has 240 divisors, whose sum is σ = 5504351448960. Its totient is φ = 418376079360.

The previous prime is 1603941856481. The next prime is 1603941856571. The reversal of 1603941856560 is 656581493061.

1603941856560 is a `hidden beast` number, since 1 + 6 + 0 + 3 + 9 + 4 + 18 + 565 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a junction number, because it is equal to n+sod(n) for n = 1603941856497 and 1603941856506.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62963506 + ... + 62988974.

It is an arithmetic number, because the mean of its divisors is an integer number (22934797704).

Almost surely, 2^{1603941856560} is an apocalyptic number.

1603941856560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1603941856560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2752175724480).

1603941856560 is an abundant number, since it is smaller than the sum of its proper divisors (3900409592400).

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

1603941856560 is a wasteful number, since it uses less digits than its factorization.

1603941856560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27396 (or 27387 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 1603941856560 in words is "one trillion, six hundred three billion, nine hundred forty-one million, eight hundred fifty-six thousand, five hundred sixty".