163311406 has 8 divisors (see below), whose sum is σ = 245103120. Its totient is φ = 81610368.

The previous prime is 163311397. The next prime is 163311427. The reversal of 163311406 is 604113361.

It is a happy number.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 17971 + ... + 25486.

It is an arithmetic number, because the mean of its divisors is an integer number (30637890).

Almost surely, 2^163311406 is an apocalyptic number.

163311406 is a deficient number, since it is larger than the sum of its proper divisors (81791714).

163311406 is a wasteful number, since it uses less digits than its factorization.

163311406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45338.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 163311406 is about 12779.3351157249. The cubic root of 163311406 is about 546.6032034365.

Adding to 163311406 its reverse (604113361), we get a palindrome (767424767).

The spelling of 163311406 in words is "one hundred sixty-three million, three hundred eleven thousand, four hundred six".