1601788608 has 280 divisors, whose sum is σ = 5577852192. Its totient is φ = 444911616.

The previous prime is 1601788553. The next prime is 1601788619. The reversal of 1601788608 is 8068871061.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1342060 + ... + 1343252.

Almost surely, 2^1601788608 is an apocalyptic number.

1601788608 is a gapful number since it is divisible by the number (18) 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 1601788608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2788926096).

1601788608 is an abundant number, since it is smaller than the sum of its proper divisors (3976063584).

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

1601788608 is a wasteful number, since it uses less digits than its factorization.

1601788608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 1601788608 is about 40022.3513552115. The cubic root of 1601788608 is about 1170.0427597785.

The spelling of 1601788608 in words is "one billion, six hundred one million, seven hundred eighty-eight thousand, six hundred eight".