165047799 has 8 divisors (see below), whose sum is σ = 251501440. Its totient is φ = 94313016.

The previous prime is 165047749. The next prime is 165047809. The reversal of 165047799 is 997740561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165047799 - 2¹⁵ = 165015031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165047749) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3929689 + ... + 3929730.

It is an arithmetic number, because the mean of its divisors is an integer number (31437680).

Almost surely, 2^165047799 is an apocalyptic number.

165047799 is a deficient number, since it is larger than the sum of its proper divisors (86453641).

165047799 is an equidigital number, since it uses as much as digits as its factorization.

165047799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7859429.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 165047799 is about 12847.0930174884. The cubic root of 165047799 is about 548.5336134163.

The spelling of 165047799 in words is "one hundred sixty-five million, forty-seven thousand, seven hundred ninety-nine".