1603255680 has 576 divisors, whose sum is σ = 6318814320. Its totient is φ = 388177920.

The previous prime is 1603255651. The next prime is 1603255721. The reversal of 1603255680 is 865523061.

1603255680 is a `hidden beast` number, since 1 + 60 + 32 + 5 + 568 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26282850 + ... + 26282910.

Almost surely, 2^1603255680 is an apocalyptic number.

1603255680 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 1603255680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3159407160).

1603255680 is an abundant number, since it is smaller than the sum of its proper divisors (4715558640).

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

1603255680 is an equidigital number, since it uses as much as digits as its factorization.

1603255680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1603255680 is about 40040.6753189803. The cubic root of 1603255680 is about 1170.3998633257.

The spelling of 1603255680 in words is "one billion, six hundred three million, two hundred fifty-five thousand, six hundred eighty".