1603220560 has 20 divisors (see below), whose sum is σ = 3727487988. Its totient is φ = 641288192.

The previous prime is 1603220533. The next prime is 1603220561. The reversal of 1603220560 is 650223061.

It can be written as a sum of positive squares in 2 ways, for example, as 897361936 + 705858624 = 29956^2 + 26568^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603220561) 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, 10020049 + ... + 10020208.

Almost surely, 2^1603220560 is an apocalyptic number.

1603220560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1603220560 is an abundant number, since it is smaller than the sum of its proper divisors (2124267428).

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

1603220560 is a wasteful number, since it uses less digits than its factorization.

1603220560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20040270 (or 20040264 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1603220560 is about 40040.2367625368. The cubic root of 1603220560 is about 1170.3913172271.

The spelling of 1603220560 in words is "one billion, six hundred three million, two hundred twenty thousand, five hundred sixty".