1603616980 has 96 divisors (see below), whose sum is σ = 4000776192. Its totient is φ = 528336000.

The previous prime is 1603616951. The next prime is 1603617019. The reversal of 1603616980 is 896163061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 654117 + ... + 656563.

It is an arithmetic number, because the mean of its divisors is an integer number (41674752).

Almost surely, 2^1603616980 is an apocalyptic number.

1603616980 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 1603616980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2000388096).

1603616980 is an abundant number, since it is smaller than the sum of its proper divisors (2397159212).

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

1603616980 is a wasteful number, since it uses less digits than its factorization.

1603616980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645 (or 2643 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1603616980 is about 40045.1867269963. The cubic root of 1603616980 is about 1170.4877747997.

The spelling of 1603616980 in words is "one billion, six hundred three million, six hundred sixteen thousand, nine hundred eighty".