165000156 has 24 divisors (see below), whose sum is σ = 385472640. Its totient is φ = 54932592.

The previous prime is 165000149. The next prime is 165000191. The reversal of 165000156 is 651000561.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2305 + ... + 18311.

It is an arithmetic number, because the mean of its divisors is an integer number (16061360).

Almost surely, 2^165000156 is an apocalyptic number.

It is an amenable number.

165000156 is an abundant number, since it is smaller than the sum of its proper divisors (220472484).

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

165000156 is a wasteful number, since it uses less digits than its factorization.

165000156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16873 (or 16871 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 165000156 is about 12845.2386509555. The cubic root of 165000156 is about 548.4808280977.

The spelling of 165000156 in words is "one hundred sixty-five million, one hundred fifty-six", and thus it is an aban number.