165116151 has 20 divisors (see below), whose sum is σ = 247849624. Its totient is φ = 109544400.

The previous prime is 165116131. The next prime is 165116153. The reversal of 165116151 is 151611561.

165116151 is a `hidden beast` number, since 1 + 651 + 1 + 6 + 1 + 5 + 1 = 666.

It is not a de Polignac number, because 165116151 - 2¹⁵ = 165083383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165116153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12261 + ... + 21921.

Almost surely, 2^165116151 is an apocalyptic number.

165116151 is a deficient number, since it is larger than the sum of its proper divisors (82733473).

165116151 is an equidigital number, since it uses as much as digits as its factorization.

165116151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9884 (or 9875 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

The square root of 165116151 is about 12849.7529548237. The cubic root of 165116151 is about 548.6093252105.

The spelling of 165116151 in words is "one hundred sixty-five million, one hundred sixteen thousand, one hundred fifty-one".