165099474 has 96 divisors (see below), whose sum is σ = 398361600. Its totient is φ = 49183200.

The previous prime is 165099469. The next prime is 165099491. The reversal of 165099474 is 474990561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1093299 + ... + 1093449.

It is an arithmetic number, because the mean of its divisors is an integer number (4149600).

Almost surely, 2^165099474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165099474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199180800).

165099474 is an abundant number, since it is smaller than the sum of its proper divisors (233262126).

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

165099474 is a wasteful number, since it uses less digits than its factorization.

165099474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 165099474 is about 12849.1040154557. The cubic root of 165099474 is about 548.5908544437.

It can be divided in two parts, 1650 and 99474, that added together give a square (101124 = 318²).

The spelling of 165099474 in words is "one hundred sixty-five million, ninety-nine thousand, four hundred seventy-four".