165065103 has 48 divisors (see below), whose sum is σ = 294661120. Its totient is φ = 86920128.

The previous prime is 165065101. The next prime is 165065113. The reversal of 165065103 is 301560561.

It is a happy number.

165065103 is a `hidden beast` number, since 1 + 6 + 5 + 0 + 651 + 0 + 3 = 666.

It is not a de Polignac number, because 165065103 - 2¹ = 165065101 is a prime.

It is a super-3 number, since 3×165065103³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165065101) 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, 42426 + ... + 46152.

Almost surely, 2^165065103 is an apocalyptic number.

165065103 is a deficient number, since it is larger than the sum of its proper divisors (129596017).

165065103 is a wasteful number, since it uses less digits than its factorization.

165065103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796 (or 3793 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 165065103 is about 12847.7664595835. The cubic root of 165065103 is about 548.5527825984.

It can be divided in two parts, 16506 and 5103, that added together give a square (21609 = 147²).

The spelling of 165065103 in words is "one hundred sixty-five million, sixty-five thousand, one hundred three".