1606481709 has 48 divisors (see below), whose sum is σ = 2592414720. Its totient is φ = 881247360.

The previous prime is 1606481599. The next prime is 1606481729. The reversal of 1606481709 is 9071846061.

It is not a de Polignac number, because 1606481709 - 2¹⁵ = 1606448941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606481729) by changing a digit.

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, 813247 + ... + 815219.

It is an arithmetic number, because the mean of its divisors is an integer number (54008640).

Almost surely, 2^1606481709 is an apocalyptic number.

It is an amenable number.

1606481709 is a deficient number, since it is larger than the sum of its proper divisors (985933011).

1606481709 is a wasteful number, since it uses less digits than its factorization.

1606481709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210 (or 2203 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1606481709 is about 40080.9394725223. The cubic root of 1606481709 is about 1171.1843533462.

The spelling of 1606481709 in words is "one billion, six hundred six million, four hundred eighty-one thousand, seven hundred nine".