1606430161 has 12 divisors (see below), whose sum is σ = 1892363520. Its totient is φ = 1359507240.

The previous prime is 1606430141. The next prime is 1606430173. The reversal of 1606430161 is 1610346061.

It is not a de Polignac number, because 1606430161 - 2²³ = 1598041553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606430131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203625 + ... + 211366.

It is an arithmetic number, because the mean of its divisors is an integer number (157696960).

Almost surely, 2^1606430161 is an apocalyptic number.

It is an amenable number.

1606430161 is a deficient number, since it is larger than the sum of its proper divisors (285933359).

1606430161 is an equidigital number, since it uses as much as digits as its factorization.

1606430161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415084 (or 415077 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1606430161 is about 40080.2964185646. The cubic root of 1606430161 is about 1171.1718264151.

It can be divided in two parts, 16064 and 30161, that added together give a square (46225 = 215²).

The spelling of 1606430161 in words is "one billion, six hundred six million, four hundred thirty thousand, one hundred sixty-one".