165058550 has 24 divisors (see below), whose sum is σ = 308037576. Its totient is φ = 65802240.

The previous prime is 165058549. The next prime is 165058583. The reversal of 165058550 is 55850561.

It is a self number, because there is not a number n which added to its sum of digits gives 165058550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9974 + ... + 20726.

It is an arithmetic number, because the mean of its divisors is an integer number (12834899).

Almost surely, 2^165058550 is an apocalyptic number.

165058550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165058550 is a deficient number, since it is larger than the sum of its proper divisors (142979026).

165058550 is a wasteful number, since it uses less digits than its factorization.

165058550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072 (or 11067 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 165058550 is about 12847.5114321802. The cubic root of 165058550 is about 548.5455234142.

The spelling of 165058550 in words is "one hundred sixty-five million, fifty-eight thousand, five hundred fifty".