165198054 has 32 divisors (see below), whose sum is σ = 382152960. Its totient is φ = 46629792.

The previous prime is 165198023. The next prime is 165198071. The reversal of 165198054 is 450891561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20209 + ... + 27180.

It is an arithmetic number, because the mean of its divisors is an integer number (11942280).

Almost surely, 2^165198054 is an apocalyptic number.

165198054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165198054 is an abundant number, since it is smaller than the sum of its proper divisors (216954906).

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

165198054 is a wasteful number, since it uses less digits than its factorization.

165198054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47484.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 165198054 is about 12852.9395081437. The cubic root of 165198054 is about 548.7000195933.

The spelling of 165198054 in words is "one hundred sixty-five million, one hundred ninety-eight thousand, fifty-four".