1606331671 has 6 divisors (see below), whose sum is σ = 1868589960. Its totient is φ = 1376855676.

The previous prime is 1606331651. The next prime is 1606331689. The reversal of 1606331671 is 1761336061.

It is not a de Polignac number, because 1606331671 - 2⁹ = 1606331159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606331621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16391091 + ... + 16391188.

It is an arithmetic number, because the mean of its divisors is an integer number (311431660).

Almost surely, 2^1606331671 is an apocalyptic number.

1606331671 is a deficient number, since it is larger than the sum of its proper divisors (262258289).

1606331671 is an equidigital number, since it uses as much as digits as its factorization.

1606331671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32782293 (or 32782286 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1606331671 is about 40079.0677411539. The cubic root of 1606331671 is about 1171.1478911344.

The spelling of 1606331671 in words is "one billion, six hundred six million, three hundred thirty-one thousand, six hundred seventy-one".