165316542 has 16 divisors (see below), whose sum is σ = 335290752. Its totient is φ = 54329240.

The previous prime is 165316519. The next prime is 165316577. The reversal of 165316542 is 245613561.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 193608 + ... + 194459.

It is an arithmetic number, because the mean of its divisors is an integer number (20955672).

Almost surely, 2^165316542 is an apocalyptic number.

165316542 is an abundant number, since it is smaller than the sum of its proper divisors (169974210).

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

165316542 is a wasteful number, since it uses less digits than its factorization.

165316542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388143.

The product of its digits is 21600, while the sum is 33.

The square root of 165316542 is about 12857.5480555198. The cubic root of 165316542 is about 548.8311729347.

The spelling of 165316542 in words is "one hundred sixty-five million, three hundred sixteen thousand, five hundred forty-two".