1606481688 has 64 divisors (see below), whose sum is σ = 4714018560. Its totient is φ = 446587776.

The previous prime is 1606481599. The next prime is 1606481729. The reversal of 1606481688 is 8861846061.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 123006 + ... + 135437.

It is an arithmetic number, because the mean of its divisors is an integer number (73656540).

Almost surely, 2^1606481688 is an apocalyptic number.

It is an amenable number.

1606481688 is an abundant number, since it is smaller than the sum of its proper divisors (3107536872).

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

1606481688 is a wasteful number, since it uses less digits than its factorization.

1606481688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258496 (or 258492 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 1606481688 is about 40080.9392105524. The cubic root of 1606481688 is about 1171.1843482429.

The spelling of 1606481688 in words is "one billion, six hundred six million, four hundred eighty-one thousand, six hundred eighty-eight".