1608606880 has 96 divisors (see below), whose sum is σ = 4014360000. Its totient is φ = 607444992.

The previous prime is 1608606877. The next prime is 1608606889. The reversal of 1608606880 is 886068061.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1608606889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072371 + ... + 1073869.

It is an arithmetic number, because the mean of its divisors is an integer number (41816250).

Almost surely, 2^1608606880 is an apocalyptic number.

1608606880 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 1608606880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2007180000).

1608606880 is an abundant number, since it is smaller than the sum of its proper divisors (2405753120).

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

1608606880 is a wasteful number, since it uses less digits than its factorization.

1608606880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1608606880 is about 40107.4417035044. The cubic root of 1608606880 is about 1171.7005684363.

The spelling of 1608606880 in words is "one billion, six hundred eight million, six hundred six thousand, eight hundred eighty".