165669498 has 24 divisors (see below), whose sum is σ = 368653428. Its totient is φ = 53730432.

The previous prime is 165669443. The next prime is 165669503. The reversal of 165669498 is 894966561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139074849 + 26594649 = 11793^2 + 5157^2 .

It is a cake number, because a cake can be divided into 165669498 parts by 998 planar cuts.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123711 + ... + 125042.

Almost surely, 2^165669498 is an apocalyptic number.

165669498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

165669498 is an abundant number, since it is smaller than the sum of its proper divisors (202983930).

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

165669498 is a wasteful number, since it uses less digits than its factorization.

165669498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248798 (or 248795 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 165669498 is about 12871.2663712628. The cubic root of 165669498 is about 549.2214858764.

The spelling of 165669498 in words is "one hundred sixty-five million, six hundred sixty-nine thousand, four hundred ninety-eight".