1608001680 has 40 divisors (see below), whose sum is σ = 4984805952. Its totient is φ = 428800384.

The previous prime is 1608001669. The next prime is 1608001739. The reversal of 1608001680 is 861008061.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3349764 + ... + 3350243.

Almost surely, 2^1608001680 is an apocalyptic number.

1608001680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1608001680 is an abundant number, since it is smaller than the sum of its proper divisors (3376804272).

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

1608001680 is a wasteful number, since it uses less digits than its factorization.

1608001680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700023 (or 6700017 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1608001680 is about 40099.8962592174. The cubic root of 1608001680 is about 1171.5536085336.

The spelling of 1608001680 in words is "one billion, six hundred eight million, one thousand, six hundred eighty".