1000165160 has 16 divisors (see below), whose sum is σ = 2250371700. Its totient is φ = 400066048.

The previous prime is 1000165141. The next prime is 1000165237. The reversal of 1000165160 is 615610001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 933546916 + 66618244 = 30554^2 + 8162^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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 3 ways as a sum of consecutive naturals, for example, 12502025 + ... + 12502104.

Almost surely, 2^1000165160 is an apocalyptic number.

1000165160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000165160 is an abundant number, since it is smaller than the sum of its proper divisors (1250206540).

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

1000165160 is a wasteful number, since it uses less digits than its factorization.

1000165160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25004140 (or 25004136 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1000165160 is about 31625.3879027594. The cubic root of 1000165160 is about 1000.0550503027.

Adding to 1000165160 its reverse (615610001), we get a palindrome (1615775161).

The spelling of 1000165160 in words is "one billion, one hundred sixty-five thousand, one hundred sixty".