406310720163 has 4 divisors (see below), whose sum is σ = 541747626888. Its totient is φ = 270873813440.

The previous prime is 406310720111. The next prime is 406310720171. The reversal of 406310720163 is 361027013604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406310720163 - 2¹² = 406310716067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406310720173) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67718453358 + ... + 67718453363.

It is an arithmetic number, because the mean of its divisors is an integer number (135436906722).

Almost surely, 2^406310720163 is an apocalyptic number.

406310720163 is a deficient number, since it is larger than the sum of its proper divisors (135436906725).

406310720163 is a wasteful number, since it uses less digits than its factorization.

406310720163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135436906724.

The product of its (nonzero) digits is 18144, while the sum is 33.

Adding to 406310720163 its reverse (361027013604), we get a palindrome (767337733767).

The spelling of 406310720163 in words is "four hundred six billion, three hundred ten million, seven hundred twenty thousand, one hundred sixty-three".