165068145 has 64 divisors (see below), whose sum is σ = 331257600. Its totient is φ = 77253120.

The previous prime is 165068131. The next prime is 165068161. The reversal of 165068145 is 541860561.

165068145 is a `hidden beast` number, since 1 + 6 + 506 + 8 + 145 = 666.

It is not a de Polignac number, because 165068145 - 2¹⁰ = 165067121 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 41149 + ... + 44981.

It is an arithmetic number, because the mean of its divisors is an integer number (5175900).

Almost surely, 2^165068145 is an apocalyptic number.

165068145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165068145 is an abundant number, since it is smaller than the sum of its proper divisors (166189455).

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

165068145 is a wasteful number, since it uses less digits than its factorization.

165068145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887 (or 3881 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 165068145 is about 12847.8848453744. The cubic root of 165068145 is about 548.5561523543.

The spelling of 165068145 in words is "one hundred sixty-five million, sixty-eight thousand, one hundred forty-five".