165508098 has 32 divisors (see below), whose sum is σ = 384721920. Its totient is φ = 46485840.

The previous prime is 165508087. The next prime is 165508099. The reversal of 165508098 is 890805561.

165508098 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (165508099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30918 + ... + 35873.

It is an arithmetic number, because the mean of its divisors is an integer number (12022560).

Almost surely, 2^165508098 is an apocalyptic number.

165508098 is an abundant number, since it is smaller than the sum of its proper divisors (219213822).

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

165508098 is a wasteful number, since it uses less digits than its factorization.

165508098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66862.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 165508098 is about 12864.9950641265. The cubic root of 165508098 is about 549.0430721247.

The spelling of 165508098 in words is "one hundred sixty-five million, five hundred eight thousand, ninety-eight".