165241550 has 24 divisors (see below), whose sum is σ = 307687896. Its totient is φ = 66023840.

The previous prime is 165241543. The next prime is 165241553. The reversal of 165241550 is 55142561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165241553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85697 + ... + 87603.

It is an arithmetic number, because the mean of its divisors is an integer number (12820329).

Almost surely, 2^165241550 is an apocalyptic number.

165241550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165241550 is a deficient number, since it is larger than the sum of its proper divisors (142446346).

165241550 is a wasteful number, since it uses less digits than its factorization.

165241550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652 (or 3647 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 165241550 is about 12854.6314610727. The cubic root of 165241550 is about 548.7481722222.

The spelling of 165241550 in words is "one hundred sixty-five million, two hundred forty-one thousand, five hundred fifty".