165852500 has 120 divisors (see below), whose sum is σ = 408844128. Its totient is φ = 58320000.

The previous prime is 165852499. The next prime is 165852523. The reversal of 165852500 is 5258561.

165852500 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1017419 + ... + 1017581.

Almost surely, 2^165852500 is an apocalyptic number.

165852500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165852500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204422064).

165852500 is an abundant number, since it is smaller than the sum of its proper divisors (242991628).

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

165852500 is a wasteful number, since it uses less digits than its factorization.

165852500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 165852500 is about 12878.3733444873. The cubic root of 165852500 is about 549.4236386490.

The spelling of 165852500 in words is "one hundred sixty-five million, eight hundred fifty-two thousand, five hundred".