120168165 has 32 divisors (see below), whose sum is σ = 207728640. Its totient is φ = 58968576.

The previous prime is 120168163. The next prime is 120168173. The reversal of 120168165 is 561861021.

It is not a de Polignac number, because 120168165 - 2¹ = 120168163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120168161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73881 + ... + 75489.

It is an arithmetic number, because the mean of its divisors is an integer number (6491520).

Almost surely, 2^120168165 is an apocalyptic number.

120168165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120168165 is a deficient number, since it is larger than the sum of its proper divisors (87560475).

120168165 is a wasteful number, since it uses less digits than its factorization.

120168165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 120168165 is about 10962.1241098612. The cubic root of 120168165 is about 493.4727131845.

The spelling of 120168165 in words is "one hundred twenty million, one hundred sixty-eight thousand, one hundred sixty-five".