165145050 has 144 divisors (see below), whose sum is σ = 513002880. Its totient is φ = 37307520.

The previous prime is 165145039. The next prime is 165145063. The reversal of 165145050 is 50541561.

It is a happy number.

165145050 is a `hidden beast` number, since 1 + 651 + 4 + 5 + 0 + 5 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 324196 + ... + 324704.

It is an arithmetic number, because the mean of its divisors is an integer number (3562520).

Almost surely, 2^165145050 is an apocalyptic number.

165145050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165145050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256501440).

165145050 is an abundant number, since it is smaller than the sum of its proper divisors (347857830).

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

165145050 is a wasteful number, since it uses less digits than its factorization.

165145050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 165145050 is about 12850.8774019520. The cubic root of 165145050 is about 548.6413296226.

The spelling of 165145050 in words is "one hundred sixty-five million, one hundred forty-five thousand, fifty".