1608736880 has 20 divisors (see below), whose sum is σ = 3740313432. Its totient is φ = 643494720.

The previous prime is 1608736879. The next prime is 1608736891. The reversal of 1608736880 is 886378061.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10054526 + ... + 10054685.

Almost surely, 2^1608736880 is an apocalyptic number.

1608736880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1608736880 is an abundant number, since it is smaller than the sum of its proper divisors (2131576552).

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

1608736880 is a wasteful number, since it uses less digits than its factorization.

1608736880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109224 (or 20109218 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 1608736880 is about 40109.0623176359. The cubic root of 1608736880 is about 1171.7321313521.

The spelling of 1608736880 in words is "one billion, six hundred eight million, seven hundred thirty-six thousand, eight hundred eighty".