165412005 has 48 divisors (see below), whose sum is σ = 304824384. Its totient is φ = 75951360.

The previous prime is 165411991. The next prime is 165412007. The reversal of 165412005 is 500214561.

It is not a de Polignac number, because 165412005 - 2¹¹ = 165409957 is a prime.

It is a super-2 number, since 2×165412005² = 54722262796240050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165412007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58177 + ... + 60953.

It is an arithmetic number, because the mean of its divisors is an integer number (6350508).

Almost surely, 2^165412005 is an apocalyptic number.

165412005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165412005 is a deficient number, since it is larger than the sum of its proper divisors (139412379).

165412005 is a wasteful number, since it uses less digits than its factorization.

165412005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 165412005 is about 12861.2598527516. The cubic root of 165412005 is about 548.9367945258.

Adding to 165412005 its reverse (500214561), we get a palindrome (665626566).

The spelling of 165412005 in words is "one hundred sixty-five million, four hundred twelve thousand, five".