1608784082640 has 240 divisors, whose sum is σ = 6229311798528. Its totient is φ = 364467769344.

The previous prime is 1608784082639. The next prime is 1608784082729. The reversal of 1608784082640 is 462804878061.

1608784082640 is a `hidden beast` number, since 1 + 608 + 7 + 8 + 4 + 0 + 8 + 26 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 842884 + ... + 1981923.

Almost surely, 2^{1608784082640} is an apocalyptic number.

1608784082640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1608784082640 is an abundant number, since it is smaller than the sum of its proper divisors (4620527715888).

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

1608784082640 is a wasteful number, since it uses less digits than its factorization.

1608784082640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824946 (or 2824937 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 1608784082640 in words is "one trillion, six hundred eight billion, seven hundred eighty-four million, eighty-two thousand, six hundred forty".