165250356 has 12 divisors (see below), whose sum is σ = 385584192. Its totient is φ = 55083448.

The previous prime is 165250339. The next prime is 165250361. The reversal of 165250356 is 653052561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6885420 + ... + 6885443.

It is an arithmetic number, because the mean of its divisors is an integer number (32132016).

Almost surely, 2^165250356 is an apocalyptic number.

It is an amenable number.

165250356 is an abundant number, since it is smaller than the sum of its proper divisors (220333836).

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

165250356 is a wasteful number, since it uses less digits than its factorization.

165250356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13770870 (or 13770868 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 165250356 is about 12854.9739789702. The cubic root of 165250356 is about 548.7579199532.

The spelling of 165250356 in words is "one hundred sixty-five million, two hundred fifty thousand, three hundred fifty-six".