163340311 has 8 divisors (see below), whose sum is σ = 168001344. Its totient is φ = 158692320.

The previous prime is 163340291. The next prime is 163340327. The reversal of 163340311 is 113043361.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 163340311 - 2⁷ = 163340183 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 (163340341) 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 7 ways as a sum of consecutive naturals, for example, 25746 + ... + 31456.

It is an arithmetic number, because the mean of its divisors is an integer number (21000168).

Almost surely, 2^163340311 is an apocalyptic number.

163340311 is a deficient number, since it is larger than the sum of its proper divisors (4661033).

163340311 is an equidigital number, since it uses as much as digits as its factorization.

163340311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6521.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 163340311 is about 12780.4659930693. The cubic root of 163340311 is about 546.6354498748.

Adding to 163340311 its reverse (113043361), we get a palindrome (276383672).

The spelling of 163340311 in words is "one hundred sixty-three million, three hundred forty thousand, three hundred eleven".