165413558 has 16 divisors (see below), whose sum is σ = 251385120. Its totient is φ = 81624000.

The previous prime is 165413543. The next prime is 165413603. The reversal of 165413558 is 855314561.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 71378 + ... + 73658.

It is an arithmetic number, because the mean of its divisors is an integer number (15711570).

Almost surely, 2^165413558 is an apocalyptic number.

165413558 is a deficient number, since it is larger than the sum of its proper divisors (85971562).

165413558 is a wasteful number, since it uses less digits than its factorization.

165413558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743.

The product of its digits is 72000, while the sum is 38.

The square root of 165413558 is about 12861.3202277216. The cubic root of 165413558 is about 548.9385124506.

The spelling of 165413558 in words is "one hundred sixty-five million, four hundred thirteen thousand, five hundred fifty-eight".