1606160025 has 18 divisors (see below), whose sum is σ = 2876811470. Its totient is φ = 856618560.

The previous prime is 1606159963. The next prime is 1606160027. The reversal of 1606160025 is 5200616061.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 487658889 + 1118501136 = 22083^2 + 33444^2 .

It is not a de Polignac number, because 1606160025 - 2¹⁶ = 1606094489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1606160027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3569020 + ... + 3569469.

Almost surely, 2^1606160025 is an apocalyptic number.

1606160025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1606160025 is a deficient number, since it is larger than the sum of its proper divisors (1270651445).

1606160025 is a wasteful number, since it uses less digits than its factorization.

1606160025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7138505 (or 7138497 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1606160025 is about 40076.9263417244. The cubic root of 1606160025 is about 1171.1061749652.

Adding to 1606160025 its reverse (5200616061), we get a palindrome (6806776086).

The spelling of 1606160025 in words is "one billion, six hundred six million, one hundred sixty thousand, twenty-five".