165116149 has 16 divisors (see below), whose sum is σ = 188832384. Its totient is φ = 142912000.

The previous prime is 165116131. The next prime is 165116153. The reversal of 165116149 is 941611561.

It is not a de Polignac number, because 165116149 - 2⁵ = 165116117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165116179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57549 + ... + 60349.

It is an arithmetic number, because the mean of its divisors is an integer number (11802024).

Almost surely, 2^165116149 is an apocalyptic number.

It is an amenable number.

165116149 is a deficient number, since it is larger than the sum of its proper divisors (23716235).

165116149 is a wasteful number, since it uses less digits than its factorization.

165116149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068.

The product of its digits is 6480, while the sum is 34.

The square root of 165116149 is about 12849.7528770012. The cubic root of 165116149 is about 548.6093229954.

The spelling of 165116149 in words is "one hundred sixty-five million, one hundred sixteen thousand, one hundred forty-nine".